GB Standard

GB standards are national standards established by the Standardization Administration of China (SAC), used to specify the dimensions, materials, mechanical properties, and technical requirements of fasteners such as bolts, nuts, washers, and screws. Some GB standards are equivalent to ISO (International Organization for Standardization) standards; for example, GB/T 5783 is equivalent to ISO 4014.

  • GB: Mandatory national standard (must be complied with).
  • GB/T: Recommended national standard (voluntary, but generally followed by the industry).

GB Standard Fasteners

  • GB 10 – countersunk square neck bolts
  • GB 10051.5 – lifting hooks – hook with pointed shank – Types LM and LY
  • GB 10051.5 – lifting hooks – hook with pointed shank – Types LMD and LYD
  • GB 1011 – truss head rivets
  • GB 1012 – 120° oval countersunk rivets
  • GB 1013 – cone head semi-tubular rivets
  • GB 1014 – truss head semi-tubular rivets
  • GB 1015 – countersunk semi-tubular rivets
  • GB 1016 – blind rivets
  • GB 102 – hexagon headwood screws
  • GB 1021 – lock washers with upward bent tab perpendicular to lug
  • GB 1022 – lock washers with upward bent tab aligned with lug
  • GB 1023 – lock washers with upward inclined tab perpendicular to outer lug
  • GB 1024 – lock washers with upward bent tab aligned with outer lug
  • GB 1030 – internal ball washers
  • GB 10432 – headless studs for stud welding
  • GB 10433 (FD) – arc welding studs – fully threadedstuds – Type FD
  • GB 109 – flat head rivets
  • GB 1097 – square and rectangular keys
  • GB 11 – countersunkbolts
  • GB 1152 – straight hydraulic grease nipples
  • GB 1154 – cap-type grease cups
  • GB 1155 – push-type grease nipples
  • GB 1160.2 (A) – oil level indicators – threaded round – Type A
  • GB 1160.2 (B) – oil level indicators – threaded round – Type B
  • GB 117 – taper pins
  • GB 118 – taper pins with internal thread – Types A and B
  • GB 119 – parallel pins
  • GB 12 – half-round head square neck bolts
  • GB 120 – parallel pins with internal thread
  • GB 1235 – O-rings，bore, cross-section, tolerances and size identification codes
  • GB 12616 – 120° flat head break mandrel rivets (closed-end blind rivets)
  • GB 12617 – 120° flat head break mandrel blind rivets
  • GB 12618 – mushroom headpull mandrel blind rivets
  • GB 13 – cheese head threaded bolts
  • GB 1337 – hex self-locking nuts
  • GB 1339 – self-locking nuts, reduced hex
  • GB 1339 – small hex self-locking nuts
  • GB 1340 – self-locking nuts, anchors, supports for floating connecting grooves
  • GB 1340 – self-locking nuts, anchors, supports for floating connecting grooves
  • GB 14 – large head cheese head square neck bolts
  • GB 15 – large head cheese head threaded bolts
  • GB 1564 – 1979 (R1Taper Keys – Normal
  • GB 1567 – square and rectangular thin keys
  • GB 21 – small hex head bolts
  • GB 2152 – parts and units of workholding fixtures – knurled nuts with hole
  • GB 2159 – parts and units of workholding fixtures – rotating threaded bushings
  • GB 22 – bolts, small hex head, with fitting neck
  • GB 2206 – components and units of workholding fixtures – positioning keys
  • GB 23 – bolts, small hex head, with hole in shank
  • GB 2329 (U) – U – bolts – Type U
  • GB 2329 (UJ) – U – bolts – Type UJ
  • GB 24 – bolts, small hex head, with fitting neck and through hole in shank
  • GB 24813 – Grade 8 forged steel hooks with latch
  • GB 24814 – short link chains for lifting – Grade 4, non-calibrated, for chain slings etc.
  • GB 25 – bolts, small hex head, with hole in head
  • GB 26 – bolts, small hex head, with fitting neck and through hole in head
  • GB 2673 – hex socket head cap screws
  • GB 2674 – hex socket oval head screws
  • GB 27 – small hex bolts
  • GB 27704 (A) – nails
  • GB 27704 (B) – flooring nails
  • GB 27704 (C) – round head cement board nails
  • GB 27704 (D) – pallet nails
  • GB 27704 (E) – bullet head nails
  • GB 27704 (F) – roofing nails
  • GB 27704 (G) – ring shank drywall nails
  • GB 27704 (H) – scaffolding nails
  • GB 27704 (I) – coil nails
  • GB 27704 (J) – plastic strip nails
  • GB 27704 (K) – roll roofing nails
  • GB 27704 (L) – paper coil nails
  • GB 27704 (M) – steel arranged nails
  • GB 27704 (N) – T-head rubber nails
  • GB 28 – hex fit bolts with split pin hole
  • GB 28 – hex bolts with split pin hole – Product Grades A and B
  • GB 29 – slotted hex bolts
  • GB 30 – hex head bolts
  • GB 305 – rolling bearings – retaining rings
  • GB 31.2 – hex bolts with split pin hole – reduced shank – Product Grade B
  • GB 31.3 – hex bolts with split pin hole – fine pitch thread – Product Grades A and B
  • GB 32.1 – hex bolts with wire hole in head – Product Grades A and B
  • GB 32.2 – hex bolts with wire hole in head – reduced shank – Product Grade B
  • GB 32.3 – hex bolts with wire hole in head – fine pitch thread – Product Grades A and B
  • GB 3289.10 – malleable iron pipe fittings – types and dimensions – tees, male and female thread
  • GB 3289.2 – malleable iron pipe fittings – types and dimensions – elbows, male and female
  • GB 3289.20 – malleable iron pipe fittings – types and dimensions – cross joints
  • GB 3289.22 – malleable iron pipe fittings – types and dimensions – male couplings (socket), male-female couplings (socket)
  • GB 3289.23 – malleable iron pipe fittings – types and dimensions – designation – square internal couplings (nipples)
  • GB 3289.26 – malleable iron pipe fittings – types and dimensions – internal couplings (hex couplings)
  • GB 3289.29 – malleable iron pipe fittings – types and dimensions – straight thread male couplings (socket)
  • GB 3289.3 – malleable iron pipe fittings – types and dimensions – 45° elbows, 45° male-female elbows
  • GB 3289.9 – malleable iron pipe fittings – types and dimensions – U-bends (return bends)
  • GB 3473 – marine toggle pins – Type A
  • GB 3473 – marine toggle pins – Type B
  • GB 37 – T-slot bolts
  • GB 3734.2 – male connectors – body
  • GB 3745.1 – Union tee assembly
  • GB 3750.3 – hollow screws
  • GB 3751.1 – pressure gauge connectors – assembly
  • GB 3751.2 – pressure gauge connectors – body
  • GB 3759 – bite-type tube fitting nuts
  • GB 3762 – bite-type tube fittings – inclined washers
  • GB 3763 – bite-type tube fittings – hex thin nuts
  • GB 39 – square nuts – Product Grade C
  • GB 4141.1 – handles
  • GB 4142 – cylindrical helical tension springs – dimensions and parameters (hook rings)
  • GB 5 – hex head bolts
  • GB 5098 – high-strength connecting bolts for railways – Property Class 10.9
  • GB 5098 – high-strength connecting nuts for railways
  • GB 51 – small hex nuts
  • GB 52 – hex nuts
  • GB 5281 – socket head shoulder screws
  • GB 5285 – hex head self-tapping screws
  • GB 53 – hex thin nuts
  • GB 5356 – socket head wrenches
  • GB 54 – hex thin nuts
  • GB 55 – hex heavy nuts
  • GB 56 – hex heavy nuts
  • GB 5780 – hex head bolts – Product Grade C
  • GB 5781 – hex head bolts – fully threaded – Product Grade C
  • GB 5782 – hex head bolts – Product Grades A and B
  • GB 5783 – hex head bolts – fully threaded – Product Grades A and B
  • GB 5784 – hex head bolts – reduced shank – Product Grade B
  • GB 5785 – hex head bolts – fine pitch thread – Product Grades A and B
  • GB 5786 – fine threadhex head bolts – fully threaded
  • GB 5787 – hex flange bolts – Product Grade B
  • GB 5789 – hex flange bolts – heavy series – Product Grade B
  • GB 5790 – large hex head flange bolts with reduced shank – Product Grade B
  • GB 58 – hex castle nuts
  • GB 60 – hex slotted reduced height nuts
  • GB 60 – hex slotted reduced height nuts
  • GB 6170 – Hex Nuts, Style 1 – Product Grades A and B
  • GB 6171 – Hex Nuts, Style 1 – fine pitch thread – Product Grades A and B
  • GB 6175 – Hex Nuts, Style 2 – Product Grades A and B
  • GB 6176 – Hex Nuts, Style 2 – fine pitch thread – Product Grades A and B
  • GB 6178 – Hex Slotted Nuts and Castle Nuts, Style 1 – Product Grades A and B
  • GB 6179 – Hex Slotted Nuts, Style 1 – Product Grade C
  • GB 6180 – Hex Slotted Nuts and Castle Nuts, Style 2 – Product Grades A and B
  • GB 6181 – Hex Thin Slotted Nuts – Product Grades A and B
  • GB 6183 – prevailing torque type hex nuts with flange (with non-metallic insert)
  • GB 6185 – prevailing torque type all-metal hex nuts, Style 2 – property classes 5, 8, 10 and 12
  • GB 6186 – prevailing torque type all-metal hex nuts, Style 2 – property classes 9
  • GB 6190 – hex socket head cap screws – property classes 4.8
  • GB 6191 – hex socket head cap screws – property classes 8.8
  • GB 62 – wing nuts
  • GB 63 – lifting nuts
  • GB 65 – slotted round head screws
  • GB 6564 – hex socket thread forming screws
  • GB 66 – slotted round head machine screws
  • GB 67 – slotted pan head screws
  • GB 68 – slotted countersunk head screws
  • GB 69 – slotted raised countersunk head screws
  • GB 70 – socket head cap screws
  • GB 70 – socket head cap screws
  • GB 71 – slotted set screws with cone point
  • GB 7244 – single coil spring lock washers (heavy duty)
  • GB 7245 – curved single coil spring lock washers
  • GB 7246 – wave single coil spring lock washers
  • GB 74 – slotted set screws with cup point
  • GB 75 – long dog point set screws
  • GB 77 – socket set screws with flat point
  • GB 78 – socket set screws with cone point
  • GB 79 – socket set screws with dog point
  • GB 798 – eye bolts
  • GB 798 – eye bolts
  • GB 799 – eye bolts
  • GB 8 – square head bolts – Product Grade C
  • GB 8 – square head bolts – Product Grade C (black)
  • GB 80 – socket set screws with cup point
  • GB 801 – short neck cup square neck bolts – Product Grade C
  • GB 802 – acorn nuts
  • GB 804 – convex hex nuts
  • GB 805 – tightening nuts
  • GB 806 – knurled nuts with ring
  • GB 807 – knurled nuts
  • GB 808 – small hex thin nuts – fine pitch thread
  • GB 809 – push-in round nuts
  • GB 810 – small round nuts
  • GB 812 – round nuts
  • GB 815 – round nuts with single side drilled holes
  • GB 816 – round nuts with dowel pin holes on side
  • GB 817 – slotted round nuts
  • GB 818 – cross recessed pan head screws
  • GB 818 – cross recessed pan head screws
  • GB 819 – cross recessed countersunk head screws
  • GB 819 – cross recessed countersunk head screws
  • GB 820 – cross recessed raised countersunk head screws
  • GB 823 – cross recessed small pan head screws
  • GB 824 – spline socket head cap screws
  • GB 825 – eye bolts
  • GB 8262 – round head oval neck bolts
  • GB 827 – nameplate rivets
  • GB 830 – slotted shoulder round head screws
  • GB 831 – slotted shoulder screws
  • GB 834 – knurled thumb screws
  • GB 835 – knurled screws
  • GB 837 – slotted pan head screws with dog point
  • GB 838 – hex screws with dog point
  • GB 839 – knurled thumb screws with dog point
  • GB 845 – cross recessedpan headself-tapping screws
  • GB 846 – cross recessedcountersunkself-tapping screws
  • GB 847 – cross recessedraised headcountersunkself-tapping screws
  • GB 849 – washers with spherical surface
  • GB 85 – long dog point square head set screws
  • GB 850 – washers with tapered face
  • GB 851 – split washers
  • GB 852 – square tapered washers for I-beams
  • GB 854 – long tab washers
  • GB 855 – tab washers with long tab and wings
  • GB 856 – external tab washers
  • GB 858 – tabs for round nuts
  • GB 859 – single coil spring lock washers, light duty
  • GB 86 – short cone point square head set screws
  • GB 860 – curved spring washers
  • GB 861.1 – internal tooth lock washers
  • GB 861.2 – internal tooth lock washers
  • GB 862.1 – external tooth lock washers
  • GB 862.2 – external serrated tooth lock washers
  • GB 863.1 – round head rivets – black
  • GB 863.2 – small head roundrivets – black
  • GB 864 – blackcone headrivets
  • GB 865 – countersunkrivets – black
  • GB 866 – oval countersunk rivets – black
  • GB 867 – round headrivets
  • GB 868 – cone headrivets
  • GB 869 – countersunkrivets
  • GB 870 – oval countersunk rivets
  • GB 871 – flat round rivets
  • GB 872 – thin headrivets
  • GB 873 – oval head semi-tubular rivets
  • GB 874 – 120° countersunk semi-tubular rivets
  • GB 875 – thin head semi-tubular rivets
  • GB 876 – tubular rivets
  • GB 877 – split taper pins
  • GB 879 – spring straight pins – slotted
  • GB 881 – clevis pins with external thread
  • GB 881 – taper pins with external thread
  • GB 884 – locking rings with screws
  • GB 885 – locking rings with screws and retaining rings
  • GB 891 – shaft end locking rings with screws
  • GB 892 – shaft end locking rings with bolts
  • GB 895.2 – round wire retaining rings for shafts
  • GB 896 – “E” rings
  • GB 897 – double-ended studs, bm=1d
  • GB 898 – double-ended studs – bm=1.25d
  • GB 899 – double-ended studs b1=1.5d
  • GB 900 – double-ended studs – bm=2d
  • GB 901 – double-ended studs（clamped type） – Product Grade B
  • GB 9074.10 – cross recessed raised countersunk head screw and countersunk external tooth lock washer assemblies
  • GB 9074.11 – cross recessed hex bolt and plain washer assemblies with dog point
  • GB 9074.12 – cross recessed hex bolt and single coil spring lock washer assemblies with dog point
  • GB 9074.13 – cross recessed hex bolt, single coil lock washer and plain washer assemblies with dog point
  • GB 9074.14 – hex head bolt and plain washer assemblies
  • GB 9074.15 – hex head bolt and single coil spring lock washer assemblies
  • GB 9074.16 – hex head bolt and external tooth lock washer assemblies
  • GB 9074.17 – hex head bolt, single coil spring lock washer and plain washer assemblies
  • GB 9074.19 – cross recessed pan head self-tapping screw and large plain washer assemblies
  • GB 9074.2 – cross recessed pan head screw and external tooth lock washer assemblies
  • GB 9074.21 – cross recessed hex head self-tapping screws with dog point and large plain washer assemblies
  • GB 9074.22 – hex head self-tapping screw and plain washer assemblies
  • GB 9074.23 – hex head self-tapping screw and plain washer assemblies
  • GB 9074.24 – plain washers for assembly
  • GB 9074.25 – plain washers for assembly
  • GB 9074.26 – single coil spring lock washers for assembly
  • GB 9074.27 – external serrated tooth lock washers for assembly
  • GB 9074.28 – countersunk external tooth lock washers for assembly
  • GB 9074.29 – small washers for self-tapping screw assemblies
  • GB 9074.3 – cross recessed pan head screw and single coil spring lock washer assemblies
  • GB 9074.30 – large washers for self-tapping screw assemblies
  • GB 9074.4 – cross recessed pan head screw, single coil spring lock washer and plain washer assemblies
  • GB 9074.7 – cross recessed small pan head screw and single coil spring lock washer assemblies
  • GB 9074.8 – cross recessed small pan head screw, single coil spring lock washer and plain washer assemblies
  • GB 9074.9 – cross recessed countersunk head screw and countersunk serrated external tooth lock washer assemblies
  • GB 91 – cotter pins
  • GB 9160.3 (HM) – rolling bearing accessories – lock nuts – HM series
  • GB 9160.3 (HML) – rolling bearing accessories – lock nuts – HML series
  • GB 9160.3 (KM) – rolling bearing accessories – lock nuts – KM series
  • GB 9160.3 (KML) – rolling bearing accessories – lock nuts – KML series
  • GB 921 – round wire retaining rings
  • GB 927 – self-locking nuts, hex spherical
  • GB 929 – self-locking nuts, single lug, anchor
  • GB 93 – single coil spring lock washers, regular type
  • GB 930 – self-locking nuts, double lug, anchor
  • GB 931 – self-locking nuts, angle nuts, anchors
  • GB 933 – self-locking nuts, double lug, Angleholm, sealed
  • GB 937 – self-locking nuts, Angchor, floating, Gang Channel
  • GB 938 – self-locking nuts, floating
  • GB 939 – self-locking nuts, boots for single lug anchors
  • GB 940 – self-locking nuts, covers for double lug anchors
  • GB 941 – self-locking nuts, covers for angle nuts and anchors
  • GB 945 – cross recessedround headscrews
  • GB 9456 – cross recessed hex head self-tapping screws with dog point
  • GB 9457 – Hex Slotted Nuts and Castle Nuts, Style 1 – fine pitch thread – Product Grades A and B
  • GB 9458 – Hex Slotted Nuts and Castle Nuts, Style 2 – fine pitch thread – Product Grades A and B
  • GB 9459 – Hex Thin Slotted Nuts – fine pitch thread – Product Grades A and B
  • GB 947 – slotted large raised headscrews
  • GB 948 – with dog pointslottedcountersunkscrews
  • GB 949 – with dog pointslottedraised countersunkscrews
  • GB 951 – cross recessedcountersunkwood screws
  • GB 952 – cross recessed countersunk wood screws
  • GB 953 – double-ended studs（clamped type）– Product Grade C
  • GB 954 – 120°countersunkrivets
  • GB 956.1 – countersunk external tooth lock washers
  • GB 956.2 – countersunk serrated external tooth lock washers
  • GB 96 – plain washers – large series – product grades A and C
  • GB 960 – grip rings
  • GB 961 – self-locking nut washers, single lug, anchor
  • GB 97 – plain washers
  • GB 973 – cross recessedcountersunkmushroom headscrews
  • GB 974 – 120°cross recessedraised countersunkscrews
  • GB 975 – tubular rivets
  • GB/T 10 – countersunk square neck bolts
  • GB/T 10 – flat headcountersunk square neck bolts
  • GB/T 100 – slottedcountersunkwood screws
  • GB/T 10051.5 – lifting hooks – hook with pointed shank – Types LM and LY
  • GB/T 10051.5 – lifting hooks – hook with pointed shank – Types LMD and LYD
  • GB/T 101 – slottedraised headcountersunkwood screws
  • GB/T 10432.1 – with ceramic ferrulesfor drawn arc stud weldingunthreaded studs – UD Type
  • GB/T 10432.2 – unthreaded studs for short-cycle drawn arc stud welding
  • GB/T 10432.3 – for capacitor discharge weldingunthreaded studs – UT Type
  • GB/T 10433 – arcstudsweldingforround headstuds
  • GB/T 10433 – round head studs for stud welding
  • GB/T 10433 (ID) – arcstudsweldingforstuds – internally threadedstuds – ID Type
  • GB/T 10433 (IS) – short-cycle drawn arc stud welding – internally threaded studs – Type IS
  • GB/T 10433 (IT) – arc ignition stud welding – internally threaded studs – Type IT
  • GB/T 10433 (MD) – studs for arc welding – nearly fully threaded studs (MPF) – Type MD
  • GB/T 10433 (ND) – for arc weldingstuds – insulatingpins/nails – ND Type
  • GB/T 10433 (PD) – studs for arc stud welding – partially threaded studs – Type PD
  • GB/T 10433 (PS) – short-cycle drawn arc stud welding – threaded studs with flange – Type PS
  • GB/T 10433 (PT) – arc ignition stud welding – threaded studs – Type PT
  • GB/T 10433 (RD) – arcstudsweldingforstuds – reduced shankthreadedstuds – RD Type
  • GB/T 10433 (SD) – for arc weldingstuds – shear connectors – SD Type
  • GB/T 10433 (UD) – arcstudsweldingforstuds – unthreaded studs – UD Type
  • – /T 10433 (USA) – short-cycle drawn arc stud welding – unthreaded studs – US type
  • GB/T 10433 (UT) – ignition tip stud welding – unthreaded studs – Type UT
  • GB/T 10446 – plain bearings – ringthrustwashers
  • – /T 10603(bow) – forged shackles for general lifting – bow shackles
  • GB/T 10603 (DEE) – forged shackles for general lifting – Dee shackles
  • GB/T 10708.1 – one-way valverubbersealed
  • GB/T 10708.3 – scrapers – A Type
  • GB/T 1096 – square keysandrectangular keys
  • GB/T 1096 – square keysandrectangular keys
  • GB/T 1097 – square keysandrectangular keys
  • GB/T 1099 – 1979 (R1 Woodruff keys)
  • GB/T 1099.1 – Woodruff keys – standard form
  • GB/T 11 – countersunkbolts
  • GB/T 11 – flat headcountersunkbolts
  • GB/T 1153 – angle hydraulic grease nipples
  • GB/T 117 – taper pins
  • GB/T 118 – taper pins with internal thread – Types A and B
  • GB/T 119.1 – parallel pins – unhardened steel and austenitic stainless steel
  • GB/T 119.2 – parallel pins (dowel pins) – hardened steel and martensitic stainless steel
  • GB/T 12 – cheese headsquare neckbolts
  • GB/T 12 – cheese headsquare neckbolts
  • GB/T 120.1 – internally threaded parallel pins – unhardened steel and austenitic stainless steel
  • GB/T 120.2 – internally threaded parallel pins – made of hardened steel and martensitic stainless steel
  • GB/T 1228 – for steel structureslarge hex headhigh-strengthbolts
  • GB/T 1228 – for steel structureslarge hex headhigh-strengthbolts
  • GB/T 1229 – high-strength large hex nuts for steel structures
  • GB/T 1229 – high-strength large hex nuts for steel structures
  • GB/T 1230 – for steel structureshigh-strengthplain washers
  • GB/T 1230 – for steel structureshigh-strengthplain washers
  • – /T 1231(assemblies) – for steel structureslarge hex headhigh-strengthboltsassemblies
  • – /T 1231(bolts) – for steel structureslarge hex headhigh-strengthboltsassemblies
  • – /T 1231 (nuts) – high-strength large hex nuts for steel structures
  • – /T 1231(washers) – for steel structureshigh-strengthplain washers
  • GB/T 1239 (NI) – torsion springs – NI Type
  • GB/T 1239 (N II) – torsion springs – N II Type
  • GB/T 1239 (N III) – torsion springs – N III Type
  • GB/T 1239 (N IV) – torsion springs – N IV Type
  • GB/T 1239 (NV) – torsion springs – NV Type
  • GB/T 1239 (N VI) – torsion springs – N VI Type
  • GB/T 12615 – mushroom head break mandrel closed-end blind rivets
  • GB/T 12615.1 – closed-end blind rivets with break pull mandrel and protruding head – property class 11 – aluminumaluminum alloy/steel
  • GB/T 12615.2 – closed-end blind rivets with break pull mandrel and protruding head – property class 30 – stainless steel/stainless steel
  • GB/T 12615.3 – closed-end blind rivets with break pull mandrel and protruding head – property class 06 – aluminum/aluminumaluminum alloy
  • GB/T 12615.4 – closed-end blind rivets with break pull mandrel and protruding head – property class 51 – A2/SSt
  • GB/T 12616.1 – closed-end blind rivets with break pull mandrel and countersunk head – property class 11 – aluminum/steel
  • GB/T 12617.1 – open-end blind rivets with break pull mandrel and countersunk head – property class 10, 11
  • GB/T 12617.2 – open-end blind rivets with break pull mandrel and countersunk head – property class 30
  • GB/T 12617.3 – open-end blind rivets with break pull mandrel and countersunk head – property class 12
  • GB/T 12617.4 – open-end blind rivets with break pull mandrel and countersunk head – property class 51
  • GB/T 12617.5 – open-end blind rivets with break pull mandrel and countersunk head – property class 20, 21, 22
  • GB/T 12618.1 – open-end blind rivets with break pull mandrel and protruding head – property class 10, 11
  • GB/T 12618.2 – open-end blind rivets with break pull mandrel and protruding head – property class 30
  • GB/T 12618.3 – open-end blind rivets with break pull mandrel and protruding head – property class 12
  • GB/T 12618.4 – open-end blind rivets with break pull mandrel and protruding head – property class 51
  • GB/T 12618.5 – open-end blind rivets with break pull mandrel and protruding head – property class 20, 21, 22
  • GB/T 12618.6 – open-end blind rivets with break pull mandrel and protruding head – property class 40, 41
  • GB/T 12868 – T Typerecessednuts
  • GB/T 13 – cheese head threaded bolts
  • GB/T 13 – cheese head threaded bolts
  • GB/T 1338 – selflocknuts, reducedhexspherical
  • GB/T 13680 – squareshapedweldingnuts
  • GB/T 13681 – hexweldingnuts
  • GB/T 13681.2 – withflangehexweldingnuts
  • GB/T 13681.2 – withflangehexweldingnuts
  • GB/T 13806.1 (A) – precisealmachineryforcross recessedroundheadscrews
  • GB/T 13806.1 (B) – precisealmachineryforcross recessedcountersunk headscrews
  • GB/T 13806.1 (C) – precisealmachineryforcross recessedprotruding headcountersunk headscrews
  • GB/T 13806.2 (A) – precisealmachineryfastener – cross recessed panheadself-tappingscrews, scrappoint
  • GB/T 13806.2 (B) – precisealmachineryfastener – cross recessed panheadself-tappingscrews, scrappoint
  • GB/T 13806.2 (C) – precisealmachineryfastener – cross recessedprotruding headcountersunk headself-tappingscrews, scrappoint
  • GB/T 13807.2 – waist-shapedstudsconnections – S Type
  • GB/T 13807.2 (A) – waist-shapedstudsconnections – A Type
  • GB/T 13807.2 (AD) – waist-shapedstudsconnections – AD Type
  • GB/T 13807.2 (L) – waist-shapedstudsconnections – L Type
  • GB/T 13807.2 (S) – waist-shapedstudsconnections – S Type
  • GB/T 13807.2 (SD) – waist-shapedstudsconnections – SD Type
  • GB/T 13807.3 – waist-shapedstudsconnections – CG Typeand CP Typenuts
  • GB/T 13807.3 (G) – waist-shapedstudsconnections – nuts – G Type
  • GB/T 13807.3 (G) – waist-shapedstudsconnections – G Typenuts
  • GB/T 13807.3 (P) – waist-shapedstudsconnections – P Typenuts
  • GB/T 13829.1 – fully-lengthplainlelrecessedwithpilot groovepins
  • GB/T 13829.1 (A) – fully-lengthplainlelrecessedwithpilot groovepins
  • GB/T 13829.1 (B) – fully-lengthplainlelrecessedwithchamfered groovepins
  • GB/T 13829.1 (C) – withrecessedpins – one-third lengthcenter groove
  • GB/T 13829.1 (D) – recessedpins – half-lengthcenter groove
  • GB/T 13829.2 – fully-lengthplainlelchamfered groovepins
  • GB/T 13829.2 (A) – coneshapedrecessedpins, A Type
  • GB/T 13829.2 (B) – half-lengthconeshapedrecessedpins
  • GB/T 13829.2 (C) – half-lengthreverseconeshapedrecessedpins
  • GB/T 13829.3 – withrecessedpins – one-third lengthcenter groove
  • GB/T 13829.3 (A) – roundheadrecessedpins
  • GB/T 13829.3 (B) – withcountersunk headrecessedpins
  • GB/T 13829.4 – recessedpins – half-lengthcenter groove
  • GB/T 13829.5 – fully-lengthconeshapedrecessedpins
  • GB/T 13829.6 – grooverecessedpins – half-lengthconeshaped grooverecessed
  • GB/T 13829.7 – half-lengthreverseconeshapedrecessedpins
  • GB/T 13829.8 – roundheadrecessedpins
  • GB/T 13829.9 – withcountersunk headrecessedpins
  • GB/T 13871.1 – withelastomericseal elementrotaryshaftlipshapedseals
  • GB/T 14 – largehead cupshapedsquareheadbolts – C Grade
  • GB/T 14 – large head cheese head square neck bolts
  • GB/T 14 – mushroom headsquare neckbolts
  • GB/T 14034.4 – metal pipehead – 60°coneshapedhead – lockfastnuts
  • GB/T 14034.4 – metal pipehead – 60°coneshapedhead – nuts
  • GB/T 14210 – drywallscrews
  • GB/T 14383 (HHP) – forgedthreadedpipe – hexheadpipe plugs
  • GB/T 14383 (HHP) – forgedthreadedpipe – hexheadpipe plugs
  • GB/T 14383 (RHP) – forgedthreadedpipe – roundheadpipe plugs
  • GB/T 14383 (RHP) – forgedthreadedpipe – roundheadpipe plugs
  • GB/T 14383 (SHP) – forgedthreadedpipe – squareheadpipe plugs
  • GB/T 14383 (SHP) – forgedthreadedpipe – squareheadpipe plugs
  • GB/T 14626 (HHP) – forgedsteelthreadedpipe – hexheadpipe plugs
  • GB/T 14626 (RHP) – forgedsteelthreadedpipe – roundheadpipe plugs
  • GB/T 14626 (SHP) – forgedsteelthreadedpipe – squareheadpipe plugs
  • GB/T 14765 – four-way socket wrenches
  • GB/T 14780 – earth-squaremachinery – drainage, fillingand levelplainplugs, A Type
  • GB/T 14780 – earth-squaremachinery – drainage, ingsquareand levelplainplugs, A Type
  • GB/T 14780 – earth-squaremachinery – drainage, ingsquareand levelplainplugs, B Type
  • GB/T 14780 – earth-squaremachinery – drainage, ingsquareand levelplainplugs, B Type
  • GB/T 14780 – earth-squaremachinery – C Typedrainage, fillingand levelplainplugs
  • GB/T 14780 – earth-squaremachinery – C Typedrainage, fillingand levelplainplugs
  • GB/T 14780 – earth-squaremachinery – drainage, ingsquareand levelplainplugs, D Type
  • GB/T 14780 – earth-squaremachinery – D Typedrainage, ingsquareand levelplainplugs
  • GB/T 15 – largehead cupheadbolts
  • GB/T 15 – mushroom head pointpointbolts
  • GB/T 15389 – threaded rod
  • GB/T 1564 – generalforconeshapedkeys
  • GB/T 1565 – wedgeshapedheadconeshapedkeys
  • GB/T 1565 – with hookconeshapedkeys
  • GB/T 1567 – squareshapedandrectangularshaped thinkeys
  • GB/T 158 – machine machine tool rules – T Typerecessed and correspondingbolts
  • GB/T 158 – machine machine tool rules – T Typerecessed and correspondingbolts
  • GB/T 158 – machine machine tool rules – T Typerecessed and correspondingnuts
  • GB/T 15855.1 – flat head round head drive rivets
  • GB/T 15855.2 – countersunkrivets
  • GB/T 15856.1 – cross recessedpan headself-tapping screws
  • GB/T 15856.1 – cross recessedpan headself-tapping screws
  • GB/T 15856.2 – cross recessedcountersunk head self drillingscrews, withself-tappingthreaded
  • GB/T 15856.2 – cross recessedcountersunkself-tapping screws
  • GB/T 15856.3 – cross recessedprotruding headcountersunk head self drillingscrews, withself-tappingthreaded
  • GB/T 15856.3 – cross recessedraised headcountersunkself-tapping screws
  • GB/T 15856.4 – hexflangeheadself-tappingscrews
  • GB/T 15856.4 – hexflangehead self drillingself-tappingscrews
  • GB/T 15856.5 – withself-tappingthreadedhexwashershead drillingholescrews
  • GB/T 15856.5 – withself-tappingthreadedhexwashershead drillingholescrews
  • GB/T 16674.1 (R) – hex bolts with flange – small series – Type R (reduced shank) – Product Grade A
  • GB/T 16674.1 (R) – hex bolts with flange – small series – Type R (reduced shank) – Product Grade A
  • GB/T 16674.1 (S) – hex bolts with flange – small series
  • GB/T 16674.1 (S) – hex bolts with flange – small series – full shank – Product Grade A
  • GB/T 16674.2 (R) – hex bolts with flange – metric fine pitch thread – small series – Type R
  • GB/T 16674.2 (R) – hex flange bolts – fine pitch thread – small series – Type R
  • GB/T 16674.2 (S) – hex bolts with flange – metric fine pitch thread – small series
  • GB/T 16674.2 (S) – hex flange bolts – fine pitch thread – small series – Type N
  • GB/T 16674.3 – hex bolts with flange – small series – Product Grade A, with Product Grade B drive characteristics
  • GB/T 16824.1 – hex head self-tapping screws with flange
  • GB/T 16824.1 – hexwashersheadself-tappingscrews
  • GB/T 16824.1 – hexwashersheadself-tappingscrews
  • GB/T 16824.2 – hexflangeheadself-tappingscrews
  • GB/T 16824.2 – withflangehexheadself-tappingscrews
  • GB/T 16922 – coneshapedkeys – thin Type
  • – /T 16922( hookshaped) – thin hookconeshapedkeys
  • GB/T 16939 – spacegrid tablesteelstructureconnectionsforhigh-strengthbolts
  • GB/T 16939 – spacegrid tablesteelstructureconnectionsforhigh-strengthbolts
  • GB/T 16939 – withholelarge hex nuts
  • GB/T 16939 – withholelarge hex nuts
  • GB/T 17116.3 – hex nuts
  • GB/T 17116.3 – hex thin nuts
  • GB/T 17116.3 – plain washers
  • GB/T 17116.3 – washers with spherical surface
  • GB/T 17880.1 – plainheadrivetnuts
  • GB/T 17880.2 – 90°countersunk headrivetnuts
  • GB/T 17880.3 – 90°smallcountersunk headrivetnuts
  • GB/T 17880.4 – 120°small numbercountersunk headrivetnuts
  • GB/T 17880.5 – plainheadhexrivetnuts
  • GB/T 18195 – precisealmachineryforhexnuts
  • GB/T 18230.1 – hex bolts for wide series structural bolting (thread lengths in accordance with GB/T 3106) – Product Grade C – property classes 8.8 and 10.9
  • GB/T 18230.2 – hex bolts for large series high-strength structural bolting (short thread length) – Product Grade C – property classes 8.8 and 10.9
  • GB/T 18230.3 – hex nuts for large series structural bolting – Product Grade B – property classes 8 and 10
  • GB/T 18230.4 – hex nuts for structural bolt connections, large width across flats, Type S1 – Product Grade B – property class 10
  • GB/T 18230.5 – plain washers for high-strength structural bolting (quenched and tempered)
  • GB/T 18230.6 – hex nuts for structural bolting, Style 1, hot-dip galvanized (over-size threads) – Product Grades A and B – property classes 5, 6 and 8
  • GB/T 18230.7 – hex nuts for large series structural bolting, hot-dip galvanized (over-size threads) – Product Grade A – property class 9
  • GB/T 19674.1 – general purpose and hydraulic connections – threaded ports and stud ends – threaded ports – Type A
  • GB/T 19674.1 – general purpose and hydraulic connections – threaded ports and stud ends – threaded ports – Type E
  • GB/T 19674.2 – general purpose and fluid power connections – threaded ports and stud ends – stud ends with elastomeric seal – Type A
  • GB/T 19674.2 – general purpose and fluid power connections – threaded ports and stud ends – stud ends with elastomeric seal – Type E
  • GB/T 19674.3 – general purpose and fluid power connections – threaded ports and stud ends – metal-to-metal sealed stud ends (Type B)
  • GB/T 1972 (A) – discshapedsprings – A Type
  • GB/T 1972 (A) – discshapedsprings-A Type
  • GB/T 1972 (B) – discshapedsprings – B Type
  • GB/T 1972 (B) – disc stylesprings-B Type
  • GB/T 1972 (C) – discshapedsprings – C Type
  • GB/T 1972 (C) – discshapedsprings-C Type
  • GB/T 1973.2 – small cylindrical helical tension springs, carbon steel
  • GB/T 1973.2 – small cylindrical helical tension springs, stainless steel
  • GB/T 1973.3 – small cylindrical helical compression springs, carbon steel
  • GB/T 1973.3 – small cylindrical helical compression springs, stainless steel
  • GB/T 2087 – cylindrical helical tension springs with hook half rings
  • GB/T 2088 (LI) – cylindrical helical tension springs – Type LI
  • GB/T 2088 (LIII) – cylindrical helical tension springs – Type LIII
  • GB/T 2088 (LVI) – cylindrical helical tension springs – LVI Type
  • GB/T 2089 – cylindrical helical compression springs
  • GB/T 20915.1 – stamping dies – elastisticscompression springs
  • GB/T 2148 – withshoulderhex nuts
  • GB/T 2151 – workholding fixturespartsandunits – adjustingnuts
  • GB/T 2153 – diamond shapednuts
  • GB/T 2154 – innerhexnuts
  • GB/T 2157 – workholding fixturespartsandunits multiplehandlenuts
  • GB/T 2160 – workholding fixturespartsandunits – clampingscrews
  • GB/T 2161 – workholding fixturespartsandunits – hexheadclampingscrews
  • GB/T 2163 – workholding fixturespartsandunits movablehandleshankclampingscrews
  • GB/T 2171 – workholding fixturespartsandunits – smooth face clamping plates
  • GB/T 21934 – earth-movingmachinery – plowbolts
  • GB/T 2196 (A/C) – workholding fixturespartsandunits – hookclamping plates – Type AandC Type
  • GB/T 2196 (B) – workholding fixturespartsandunitunits – hookclamping plates – Type B
  • GB/T 2197 – workholding fixturespartsandunits hookclamping plates(assembled)
  • GB/T 2198 – workholding fixturespartsandunits – verticalhookclamping plates(assembled)
  • GB/T 2199 – workholding fixturespartsandunits – end facehookplates(assembled)
  • GB/T 2200 – workholding fixturespartsandunits – sidehookclamping plates(assembled)
  • GB/T 2201 – locatingbushingfixturescomponentsandunits
  • GB/T 2203 – workholding fixturespartsandunits(fixed locating pins)
  • GB/T 2205 – workholding fixturespartsandunits – alignment pins
  • GB/T 2220 – workholding fixturespartsandunits – flexisticshandleshank
  • – /T 2225 – workholding fixturespartsandunits – liftingbolts
  • GB/T 2230 – workholding fixturespartsandunits adjustable supports
  • GB/T 2234 – workholding fixturespartsandunits – short legs
  • GB/T 2256 – workholding fixturespartsandunits – plasticfixtures forhexscrews
  • GB/T 2257 – workholding fixturespartsandunits – plasticfixtures forinnerhexscrews
  • – /T 2268 – workholding fixturespartsandunits – drillbushingscrews
  • – /T 2269 – workholding fixturespartsandunits – boringholesleevescrews
  • GB/T 22795 (JD) – -instyleexpansionanchors
  • GB/T 22795 (LG) – thread-instyleexpansionplacethreads
  • GB/T 22795 (NP) – insert-in-typeexpansionanchorthreads
  • GB/T 22795 (STG) – double sleeveexpansionbolts (STG)
  • GB/T 22795 (TG) – setstyleexpansionplacethreads
  • GB/T 22795 (TGQ) – setincreasestrongtypeexpansionplacethreads
  • GB/T 22795 (WP) – externalforceexpansionanchors
  • GB/T 22795 (ZM) – taperformcapexpansionthreads (ZM)
  • GB/T 24425.1 – general purpose Typewirethreadedinserts – coarsethreaded
  • GB/T 24425.1 – general purpose Typewirethreadedinserts – fine pitch thread
  • GB/T 24425.2 – blindhole forgeneral purpose Typewirethreadedinserts
  • GB/T 24425.3 – prevailing torque Typewirethreadedinserts – coarse pitchthreaded
  • GB/T 24425.3 – prevailing torque Typewirethreadedinserts – fine pitch thread
  • GB/T 24425.4 – blindhole forprevailing torque typewirethreadedinserts
  • GB/T 25618.1 – earth-movingmachinery – lubricationtionhead – Part1：tionhead type
  • – /T 25854(bow) – forged shackles for general lifting – bow shackles
  • GB/T 25854 (DEE) – forged shackles for general lifting – Dee shackles
  • GB/T 2670.1 – hexshaped innerhex panheadself-tappingscrews
  • GB/T 2670.1 – hexshaped innerhex panheadself-tappingscrews
  • GB/T 2670.2 – hexshaped innerhexcountersunk headself-tappingscrews
  • GB/T 2670.2 – hexshaped innerhexcountersunk headself-tappingscrews
  • GB/T 2670.3 – 6angleforminner6angleraisedheadcountersunkhead(ovalroundform)from-drillingthread-in
  • GB/T 2670.3 – 6angleforminner6angleraisedheadcountersunkhead(ovalroundform)from-drillingthread-in
  • GB/T 2671.1 – hexshaped innerhexscrews(shorthead)
  • GB/T 2671.1 – hexshaped innerhexscrews(shorthead)
  • GB/T 2671.2 – hex shapedinnerhexcylindricalheadscrews
  • GB/T 2671.2 – hex shapedinnerhexcylindricalheadscrews
  • GB/T 2672 – 6angleformsocketinner6anglepanheadthread-in
  • GB/T 2672 – hexshaped innerhex panheadscrews
  • GB/T 2672 – hexshaped innerhex panheadscrews
  • GB/T 2673 – 6angleformdecreasethinshapeinner6anglecountersunkheadthread-in
  • GB/T 2673.1 – hexshaped innerhexcountersunk headplainheadscrews
  • GB/T 2673.2 – hexshaped innerhexcountersunk headscrews
  • GB/T 2674 – hexshaped innerhexprotruding headcountersunk headscrews
  • GB/T 2674 – hexshaped innerhexprotruding headcountersunk headscrews
  • GB/T 27 – hex fit bolts – Product Grades A and B
  • GB/T 27 – hex matching closeshankbolts
  • GB/T 27696 – 4 Gradeforgedsteeleyeringthreads, general purposeliftheavy purpose
  • GB/T 28 – withopen-endpinsholehex matching closeshankbolts
  • GB/T 2878.4 (PLEH) – hydraulicvoltagecurrentmovingforceconnecjoint – stripmetricthreadand O formersdensesealendportandthreadstudend – Part 4 partanalysis: 6anglethreadplug
  • GB/T 2878.4 (PLIH) – hydraulicvoltagecurrentmovingforceconnecjoint – stripmetricthreadand O formersdensesealendportandthreadstudend – Part 4 partanalysis: inner6anglethreadplug
  • GB/T 29.1 – head partwithrecessedhexbolts
  • GB/T 29.1 – head partwithrecessedhexbolts – product A and B
  • GB/T 29.2 – with dog pointcross recessedhexbolts
  • GB/T 29.2 – head partwithcross recessedhexbolts
  • GB/T 305 – rolling bearings – retaining rings
  • GB/T 305 – rollingbearsocket-retainers
  • GB/T 305 – rollingbearsocket-retainers
  • GB/T 31.1 – hex bolts with split pin hole
  • GB/T 31.1 – hex bolts with split pin hole A and B
  • GB/T 32.1 – hex bolts with wire hole in head
  • GB/T 32.3 – hex bolts with wire hole in head – fine pitch thread
  • GB/T 32076.11 – increasestrongvelocityprevailingtightstructurethreadssetpart Part11partanalysis: load indicatingwashers
  • GB/T 32076.11 (HB) – high-strengthstructural boltingassembls(prevailing)Part11：boltsfacewashers (HB)
  • GB/T 32076.11 (HN) – high-strengthstructural boltingassembls(prevailing)Part11：nutsfacewashers (HN)
  • GB/T 32076.3 – increasestrongvelocityprevailingtightstructurethreadssetpart – Part3partanalysis: HRisies – increasestrongvelocityincrease6anglethreadnut
  • GB/T 32076.3 – increasestrongvelocitystructureprevailingtightthreadssetpart – Part3partanalysis: isiesHR-increaseto across flatswide6anglethreads
  • GB/T 32076.4 – increasestrongvelocitystructureprevailingtightthreadssetpart – Part4partanalysis: to across flatswideincreaseHVtype6anglethreads
  • GB/T 32076.4 – HVisies—increasestrongvelocityincrease6anglethreadnut
  • GB/T 32076.5 – high-strengthprevailingstructural boltingassembls – Part5：plain washers
  • GB/T 32076.6 – increasestrongvelocityprevailingtightstructurethreadssetpart – Part6partanalysis: flatheadchamferedanglewashers
  • GB/T 32076.7 – increasestrongvelocityprevailingtightstructurethreadssetpart – Part7partanalysis: HVisiesincreasewidevelocityto across flats6anglethreadsandthreadnutsetpart M39 to M64
  • GB/T 32076.7 – HVisies—increasestrongvelocityincrease6anglethreadnut M39 to M64
  • GB/T 32076.7 – high-strengthfor steel structuresHV Typewashers
  • GB/T 32076.8 – high-strengthprevailingstructural boltingassembls – nutsassembls
  • GB/T 32076.8 – increasestrongvelocityprevailingtightstructurethreadssetpart – cupheadtwist-offstylethreads
  • GB/T 32076.9 – twist-offstyleincreasestrongvelocitythreads6anglethreadnutsetassemble
  • GB/T 32076.9 – large widthedgewidehexagoncornerheadtwist-off-typethreads
  • GB/T 32294 (SUN) – forgedunionjointjointhead, socketinsert welding
  • GB/T 32294 (TUN) – threadedforgedhead
  • GB/T 3390.1 – handingsleevewrenchhand – sleeve, 10series
  • GB/T 3390.1 – handingsleevewrenchhand – sleeve, 12.5series
  • GB/T 3390.1 – handingsleevewrenchhand – sleeve, 20series
  • GB/T 3390.1 – handingsleevewrenchhand – sleeve, 25series
  • GB/T 3390.1 – handingsleevewrenchhand – sleeve, 6.3series
  • GB/T 33943 – steelstructureincreasestrongvelocityanchorsecure purpose6anglethreadnut
  • GB/T 33943 – steel structureshigh-strengthanchorforplain washers
  • GB/T 33943 – increasestrongvelocityanchorssteelstructure
  • GB/T 3452.1 (A) – fluiding forceseries — O ers — A series
  • GB/T 3452.1 (G) – fluiding forceseries — O ers — G series
  • GB/T 35 – smallsquareheadbolts
  • GB/T 35 – smallheadsquareheadbolts
  • GB/T 35481 – hexheadflangebolts – reduced shank rod
  • GB/T 35481 – withflangehexshapedbolts
  • GB/T 3632 (H) – steelstructure purposetwist-offstyleincreasestrongvelocitythreadnut
  • GB/T 3632 (H) – steelstructure purposetwist-offstyleflatwashers
  • GB/T 3632 (S) – steelstructure purposetwist-offstyleincreasestrongvelocitythreads
  • GB/T 3632 (S) – steelstructure purposetwist-offstyleincreasestrongvelocitythreads
  • GB/T 3632 (W) – steelstructure purposetwist-offstyle6anglethreadnut
  • GB/T 3632 (W) – steelstructure purposetwist-offstyleflatwashers
  • GB/T 36524 (EH) – pressureassembleworktool – rectangularpressurereducedsprings – superhigh-springsrigid(colorcolorcode: yellowcolor)
  • GB/T 36524 (H) – pressureclassworktool – rectangularpressurereducedsprings – high-springsrigid(colorcolorcode: redcolor)
  • GB/T 36524 (L) – pressurejointworktool – rectangularpressurereducedsprings – lightsprings(colorcolorcode: greencolor)
  • GB/T 36524 (M) – pressureassembleworktool – rectangularpressurereducedsprings – mediumspringsrigid(colorcolorcode: bluecolor)
  • GB/T 3733 (A) – 24°taperjointhead – straightthreadthread, A
  • GB/T 3733 (B) – 24°taperjointhead – straightthreadthread, B
  • GB/T 3733 (E) – 24°taperjointhead – straightthreadthread, E
  • GB/T 3733 (F) – 24°taperjointhead – straightthreadthread, F
  • GB/T 3733.1 – straightthreadthreadconnecjointtor – assemblefit
  • GB/T 3737 – 24°taperformconnecjointdevice – unionjoint
  • GB/T 3740 – 24°taperjointhead – unionjointbendhead
  • GB/T 3746 – 24°coneshapedconnectors – crosshead
  • GB/T 3747 – 24°tapertionhead – weldingtionmetrichead
  • GB/T 3748 – 24°taperjointhead – bulkplatejointhead
  • GB/T 3754 – 24°taperjointhead – withOringswivelbendhead
  • GB/T 3756 – 24°taperconnecjointtor – withOringandclosedendswivelthreadstudstraightgeneralsuitablefittor
  • GB/T 3757 – 24°taperjointhead – weldingjoint-typebulkplatestraightgeneraljointhead
  • GB/T 3758 – 24°coneshapedhead – welding stylehead
  • GB/T 3759 – 24°coneshapedconnectorsnuts
  • GB/T 3760 – 24°taperconnecjointtor – withOringinserthead
  • GB/T 3763 – 24°taperconnecjointtorandflaredjointhead – hexthinthreadnut
  • GB/T 3764 – 24°coneshapedconnectors – -way socketers
  • GB/T 39949.1 (AA4-R/AA6-R) – hydraulicpressurefluid power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series: AA4-R – pivotpinpin, plain powerpinsocketor AA6-R – pivotpinpin, ballfacepinsocket
  • GB/T 39949.1 (AA4-S/AA6-S) – hydraulicpressurefluid power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series: AA4-S – pivotpinpin, plain powerpinsocketor AA6-S – pivotpinpin, ballfacepinsocket
  • GB/T 39949.1 (AB3) – hydraulicpressure power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series – angledUsupportbracket
  • GB/T 39949.1 (AB4) – hydraulicpressurefluid power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumand 25 MPa (250 bar) series – straight-typeUsupportbracket
  • GB/T 39949.1 (AF3) – hydraulicpressurefluid power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series – rodflange, round
  • GB/T 39949.1 (AP2) – hydraulicpressurefluid power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series – rodjointhead, innerthreadthread
  • GB/T 39949.1 (AP4) – hydraulicpressure power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series – rodeyeplainring, innerthreadthread
  • GB/T 39949.1 (AP6) – hydraulicpressure power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series – rodeyeball, innerthreadthread
  • GB/T 39949.1 (AT4) – hydraulicpressurefluid power – singlerodoilcylinderaccessories, 16 MPa (160 bar) mediumpressureand 25 MPa (250 bar) series – earpinsupportbracket
  • GB/T 41 – hex nuts – Product Grade C
  • GB/T 41 – Hex Nuts, Style 1 – Product Grade C
  • GB/T 4329 – agriculturalforestryusetrailermachineandmachine – openpinandspringspin (IDT ISO 7072:1993)
  • GB/T 4388 – open-endwrenches
  • GB/T 4388 – set closewrenches
  • GB/T 4388 – deepoffsetsleevewrench
  • GB/T 4388 – open-endwrenches
  • GB/T 4388 – doubleheadsocket wrenches
  • GB/T 4388 – doubleheadopen-endwrenches
  • GB/T 5098 – high-strength connecting bolts for railways – 8.8 Grade
  • GB/T 5282 – slottedpan headself-tapping screws
  • GB/T 5282 – slottedpan headself-tapping screws
  • GB/T 5283 – slottedcountersunkself-tapping screws
  • GB/T 5283 – slottedcountersunk（flat head）self-tapping screws
  • GB/T 5284 – slottedraised headcountersunk（oval head）self-tapping screws
  • GB/T 5284 – slottedraised headcountersunkself-tapping screws
  • GB/T 5285 – hex head self-tapping screws
  • GB/T 5287 – plain washers – characterlargeseries – C Product Grade
  • GB/T 5287 – plain washers – characterlargeseries – C Product Grade
  • GB/T 5356 – socket head wrenches
  • GB/T 5356 – socket head wrenches
  • GB/T 5357 – hexsplinewrench
  • GB/T 547 (A) – anchorload shackle
  • GB/T 547 (B) – Uanchorload shackle
  • GB/T 5625 (A) – flaredjointhead – straightthreadthread – Athreadstudend
  • GB/T 5625 (F) – flaredjointhead – straightthreadthread – F threadstudend
  • GB/T 5626 – flaredjointhead – metrichead
  • GB/T 5627 – flaredjointhead – longmetrichead
  • GB/T 5627 – flaredjointhead – longmetricjointhead
  • GB/T 5646 – flaredjointhead – sleeve
  • GB/T 5647 – flarejointhead – Athreadnut
  • GB/T 5648 – flarejointhead – Bthreadnut
  • GB/T 5649 – flaredjointhead – lockingthreadnut
  • GB/T 5649 – flaredjointhead – lockingwashring
  • GB/T 5650 – flaredjointhead – reverseflaredthreads
  • GB/T 5650 – flared-typetubejointhead – reverseflaredthreads
  • GB/T 5780 – hex head bolts – Product Grade C
  • GB/T 5780 – hex head bolts – Product Grade C
  • GB/T 5781 – hex head bolts – fully threaded – Product Grade C
  • GB/T 5781 – hexheadbolts – fullythreaded – product GradeC
  • GB/T 5782 – hex head bolts – A GradeandB Grade
  • GB/T 5782 – hex head bolts – Product Grades A and B
  • GB/T 5783 – hex head bolts – fully threaded
  • GB/T 5783 – hexheadbolts – fullythreaded – A GradeandB Grade
  • GB/T 5785 – hex head bolts – fine pitch thread – Product Grades A and B
  • GB/T 5785 – hex head bolts – fine pitch thread – Product Grades A and B
  • GB/T 5786 – fine threadhex head bolts – fully threaded
  • GB/T 5786 – fine threadhex head bolts – fully threaded
  • GB/T 5788 – hex flange bolts – reduced shank – Product Grade B
  • GB/T 5974.1 – steelwireropeusegeneralusering
  • GB/T 5976 – steelwireropecliptool
  • GB/T 6170 – Hex Nuts, Style 1
  • GB/T 6170 – Hex Nuts, Style 1
  • GB/T 6171 – Hex Nuts, Style 1 – fine pitch thread
  • GB/T 6171 – Hex Nuts, Style 1 – fine pitch thread
  • GB/T 6172 – hex thinnuts – A GradeandB Gradeproduct – chamfered
  • GB/T 6172.1 – hex thin nuts
  • GB/T 6172.1 – hex thinnuts(chamfered)
  • GB/T 6172.2 – prevailingingrectangularhexthinthreadnut(withnon-metalinserties)
  • GB/T 6172.2 – prevailingingrectangularhexthinthreadnut(withnon-metalinserties)
  • GB/T 6173 – hex thin nuts – fine pitch thread
  • GB/T 6173 – hex thin nuts – fine pitch thread – Product Grades A and B
  • GB/T 6173 – fine pitchthreadedhex thinnuts(chamfered)
  • GB/T 6174 – hex thinnuts – withoutchamfered
  • GB/T 6174 – hex thinnuts – withoutchamfered
  • GB/T 6174 – hex thinnuts – withoutchamfered – B Gradeproduct
  • GB/T 6175 – Hex Nuts, Style 2
  • GB/T 6175 – Hex Nuts, Style 2
  • GB/T 6176 – Hex Nuts, Style 2，fine pitch thread
  • GB/T 6176 – Hex Nuts, Style 2 – fine pitch thread
  • GB/T 6177 – withflangehexnuts – A Gradeproduct
  • GB/T 6177.1 – withflangehexnuts
  • GB/T 6177.1 – withflangehexnuts, 2 Type
  • GB/T 6177.2 – withflangehexnuts, 2 Type – fine pitchthreaded
  • GB/T 6177.2 – withflangehexnuts, 2 Type – fine pitchthreaded
  • GB/T 6182 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 2
  • GB/T 6182 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 2
  • GB/T 6182 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 2
  • GB/T 6183.1 – prevailing torque type hex nuts with flange (with non-metallic insert)
  • GB/T 6183.1 – withflangeprevailingingrectangularhexthreadnut(withnon-metalinserties), 2
  • GB/T 6183.2 – withflange(withnon-metalinserties)prevailingingtwistrectangularfine pitchthreadthreadhexthreadnut
  • GB/T 6183.2 – withflangeprevailingingtwistrectangularhexthreadnut(withnon-metalinserties), 2 – fine pitchthreadthread
  • GB/T 6184 – prevailingingrectangularfullmetalhexthreadnut, 1
  • GB/T 6185.1 – prevailingingrectangularfullmetalhexthreadnut, 2
  • GB/T 6185.1 – prevailingingrectangularfullmetalhexthreadnut, 2
  • GB/T 6185.2 – prevailingingrectangularfullmetalhexthreadnut, 2 – fine pitchthreadthread
  • GB/T 6185.2 – prevailingingrectangularfullmetalhexthreadnut, 2 , fine pitchthreadthread
  • GB/T 6186 – prevailingingrectangularfullmetalhexthreadnut, 2 – performance grade 9
  • GB/T 6187 – withflangeprevailingingrectangularfullmetalhexthreadnut
  • GB/T 6187.1 – prevailingingrectangularfullmetalwithflangehexthreadnut
  • GB/T 6187.1 – withflangeprevailingingrectangularfullmetalhexthreadnut, 2
  • GB/T 6187.2 – prevailingingtwistrectangularfullmetalwithflangefine pitchthreadthreadhexthreadnut
  • GB/T 6187.2 – withflangeprevailingingtwistrectangular-typefullmetalhexthreadnut, 2 – fine pitchthreadthread
  • GB/T 62.1 – wingthreadnut – roundwing
  • GB/T 62.2 – squarethreadnut
  • GB/T 62.3 – wingthreadnut – pressureingwingthreadnut
  • GB/T 62.4 – wingthreadnut – pressurecastwingthreadnut
  • GB/T 65 – slotted round head screws
  • GB/T 65 – slotted round head screws
  • GB/T 6560 – cross recessedpan headself-tapping screws
  • GB/T 6560 – 10characterpanheadrollvoltagethread-in
  • GB/T 6561 – cross recessedcountersunkself-tapping screws
  • GB/T 6561 – 10charactercountersunkheadrollwirethread-in
  • GB/T 6562 – cross recessedraised headcountersunkself-tapping screws
  • GB/T 6562 – cross recessedraised headcountersunkself-tapping screws
  • GB/T 6563 – hex head self-tapping screws
  • GB/T 6563 – 6angleheadthreadrollvoltagethread-in
  • GB/T 6564.1 – 6angleforminner6angleroundstudheadrollvoltagethread-in
  • GB/T 67 – slotted pan head screws
  • GB/T 67 – slotted pan head screws
  • GB/T 67 – slottedpan headscrews – Product Grade A
  • GB/T 68 – slottedcountersunkflat headscrews
  • GB/T 68 – openrecessedcountersunk headscrews( general generalhead Type)
  • GB/T 69 – countersunk head openrecessedprotruding headscrews( general generalhead Type)
  • GB/T 69 – slotted raised countersunk head screws
  • GB/T 70.1 – socket head cap screws
  • GB/T 70.1 – socket head cap screws
  • GB/T 70.2 – socket headround headscrews
  • GB/T 70.2 – socket headround headscrews
  • GB/T 70.2 – socket headround headscrews
  • GB/T 70.3 – socket headcountersunkscrews
  • GB/T 70.3 – socket headcountersunkscrews
  • GB/T 70.3 – lowersocketloadinnerhexcountersunkheadthread-in
  • GB/T 70.4 – withflangeinnerhexroundheadscrews
  • GB/T 70.6 – socket head cap screws – fine pitch thread
  • GB/T 71 – withconepoint openrecessedset screws
  • GB/T 72 – withconepoint openrecessedset screws
  • GB/T 73 – flat headslottedset screws
  • GB/T 73 – flat headslottedset screws
  • GB/T 74 – slotted set screws with cup point
  • GB/T 75 – longeyeheadopenslotingfixedthread-in
  • GB/T 77 – socket set screws with flat point
  • GB/T 77 – socket set screws with flat point
  • GB/T 78 – conepoint innerhexset screws
  • GB/T 78 – conepoint innerhexset screws
  • GB/T 79 – socket set screws with dog point
  • GB/T 79 – socket set screws with dog point
  • GB/T 794 – addhigh-squareneckcoverheadthreads
  • GB/T 794 – addhigh-squareneckcoverheadthreads
  • GB/T 794 (A) – addhigh-cupheadsquareneckthreads – A
  • GB/T 794 (B) – addhigh-cupheadsquareneckthreads – B
  • GB/T 798 – eye bolts
  • GB/T 799 (A) – anchorthreads – A Type
  • GB/T 799 (B) – anchorthreads – B Type
  • GB/T 799 (C) – anchorthreads – C Type
  • GB/T 8 – square head bolts – Product Grade C
  • GB/T 80 – socket set screws with cup point
  • GB/T 80 – socket set screws with cup point
  • GB/T 800 – doubleraisedearcountersunkheadthreads
  • GB/T 800 – countersunk head doublepointbolts
  • GB/T 801 – smallheadshortneckcupheadsquareneckthreads – B gradeproduct
  • GB/T 801 – smallheadshortneckcupheadsquareneckthreads – B gradeproduct
  • GB/T 802.1 – roundheadnuts – assemble matching Type
  • GB/T 802.3 – withflangehexnuts – welding Type
  • GB/T 802.4 – hexcoverthreadnut – weldingjoint
  • GB/T 802.5 – prevailingingrectangularhexthreadnut(withnon-metalinserties)- weldingjoint
  • GB/T 818 – cross recessed pan head screws
  • GB/T 818 – cross recessed pan head screws
  • GB/T 819.1 – crossslotcountersunkheadflatheadthread-in(plaingeneralhead) – Part1: performance grade4.8
  • GB/T 819.1 – crossslotcountersunkheadflatheadthread-in(plaingeneralhead) – Part1: performance grade4.8
  • GB/T 819.2 – crossslotcountersunkheadflatheadthread-in – Part2: performance grade8.8, notruststeelthread-inandwithcolormetalthread-in
  • GB/T 819.2 – crossslotcountersunkheadflatheadthread-in(plaingeneralhead) – A grade – Part2: performance grade8.8steel、notruststeelandwithcolormetal
  • GB/T 820 – strip10charactersocketraisedheadcountersunkheadthread-in(generalgeneralheadtype)
  • GB/T 820 – strip10charactersocketraisedheadcountersunkheadthread-in
  • GB/T 821 – chamferedpointsquareheadset screws
  • GB/T 821 – chamferedpointsquareheadset screws
  • GB/T 822 – cross recessedround headscrews
  • GB/T 822 – cross recessedround headscrews
  • GB/T 822 – crosssocketslotcheeseheadthread-in
  • GB/T 823 – strip10charactersocketdecreasetypepanheadthread-in
  • GB/T 828 – witheyeheadslotpanheadingfixedthread-in
  • GB/T 829 – witheyeheadslotingfixedthread-in
  • GB/T 83 – -lengthpointroundheadsquareheadset screws
  • GB/T 83 – -lengthpointroundheadsquareheadset screws
  • GB/T 832 – openslotcovercapstandardthread-in
  • GB/T 833 – openrecessedlargeroundheadscrews
  • GB/T 836 – smallheadrollsplinethread-in
  • GB/T 84 – cheese headsquare headset screws
  • GB/T 84 – cheese headsquare headset screws
  • GB/T 840 – plasticdiamondrollsplineheadthread-in
  • GB/T 845 – cross recessedpan headself-tapping screws
  • GB/T 845 – cross recessedpan headself-tapping screws
  • GB/T 846 – cross recessedcountersunkself-tapping screws
  • GB/T 846 – cross recessedcountersunkself-tapping screws
  • GB/T 847 – cross recessedraised headcountersunk（oval head）self-tapping screws
  • GB/T 848 – A Gradesmallwashers
  • GB/T 848 – plain washers – small series – A Product Grade
  • GB/T 85 – long dog point square head set screws
  • GB/T 853 – recessed Typesquareconeshapedwashers
  • GB/T 86 – short cone point square head set screws
  • GB/T 878 – withshank withoutheadrecessedscrews
  • GB/T 878 – withshank withoutheadrecessedscrews(with outerthreadedparallel pins)
  • GB/T 879.1 – springs-typestraightpin-openslot, heavy
  • GB/T 879.1 – springs-typestraightpin-openslot, heavy
  • GB/T 879.2 – spring straight pins – slotted – light duty
  • GB/T 879.2 – spring typestraight pins-slotted, light duty
  • GB/T 879.3 – springs-typestraightpin – wound-type, heavy
  • GB/T 879.3 – springs-typestraightpin – wound-type, heavy
  • GB/T 879.4 – springs-typestraightpin – wound-type, standard
  • GB/T 879.4 – springs-typestraightpin – wound-type, standard
  • GB/T 879.5 – springs-typestraightpin – wound-type, light
  • GB/T 879.5 – springs-typestraightpin – wound-type, light
  • GB/T 880 – withoutheadopen-endpins(withopen-endpinsholepins)
  • GB/T 880 (A) – withoutheadopen-endpins – A Type
  • GB/T 880 (B) – withoutheadopen-endpins(withopen-endpinsholepins)
  • GB/T 881 – outerthreadedconeshapedpins
  • GB/T 882 – withheadopen-endpins – A Typeand B Type
  • GB/T 882 – withheadopen-endpins
  • GB/T 883 – withconeshapedpinslockfastring
  • GB/T 886 (H) – shoulderring – heavyseries
  • GB/T 886 (L) – shoulderring – lightseries
  • GB/T 886 (M) – shoulderring – mediumNo.series
  • GB/T 889 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 1
  • GB/T 889.1 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 1
  • GB/T 889.1 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 1
  • GB/T 889.2 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 1 – fine pitchthreadthread
  • GB/T 889.2 – prevailingingrectangularhexthreadnut(withnon-metalinserties), 1 – fine pitchthreadthread
  • GB/T 8918 – heavymainusepurposesteelwirerope
  • GB/T 893 (A) – holeuseretainring – A (standard)
  • GB/T 893 (B) – holeuseretainring – B (heavy)
  • GB/T 893.1 – holeuseretainring – A
  • GB/T 893.2 – holeuseretainring – B
  • GB/T 894 (A) – shaft purposeretainers – A type(standardstandard)
  • GB/T 894 (B) – bear purposeretainers – B Type(heavy Type)
  • GB/T 894.1 – for shaftsretaining rings – A Type
  • GB/T 894.2 – for shaftsretaining rings – B Type
  • GB/T 895.1 – holeuseroundwireretainring
  • GB/T 896 – “E” Typering
  • GB/T 902.1 – es industryweldingforweldingstuds
  • GB/T 902.1 – es industryweldingforweldingstuds
  • GB/T 902.2 – for arc weldingweldingstuds
  • GB/T 902.2 (ID) – withceramicsleeveringerarc weldingusethreadthreadthreadstud – innerradius
  • GB/T 902.2 (PD) – withceramicsleeveringerarc weldingusethreadthreadthreadstud – PD
  • GB/T 902.2 (RD) – withceramicsleeveringerarc weldingusethreadthreadthreadstud – RD
  • GB/T 902.3 (IT) – for capacitor discharge weldingweldingstuds – IT Type
  • GB/T 902.3 (PT) – for capacitor discharge weldingweldingstuds
  • GB/T 902.3 (PT) – for capacitor discharge weldingweldingstuds – PT Type
  • GB/T 902.4 (IS) – for short-cycle drawn arc stud weldingwith flangethreadedstuds – IS Typeinternally threadedstuds
  • GB/T 902.4 (PS) – for short-cycle drawn arc stud weldingwith flangethreadedstuds – PS Typewith flangethreadedstuds
  • GB/T 9074.1 – withplainwashersbolts orscrewsandwashersassemblies
  • GB/T 9074.1 – withplainwashersbolts orscrewsandwashersassemblies
  • GB/T 9074.1 – cross recessed pan head screwsandplain washersassemblies
  • – /T 9074.1(hexflangebolts(fine pitchthreaded)andwithplainwasherswashersassemblies)
  • – /T 9074.1(withplainwashershexflangeboltsandwashersassemblies)
  • – /T 9074.1(withplainwashers innerhexroundheadscrewsandwashersassemblies)
  • – /T 9074.1(withplain washersinnerhexcylindricalheadscrewsandwashersassembls)
  • – /T 9074.1 cross recessed panheadscrewsandwithplainwasherswashersassemblies
  • – /T 9074.1 hexheadbolts(fullythreaded) andwithplainwasherswashersassemblies
  • – /T 9074.1 hexheadboltsandwithplainwasherswashersassemblies
  • – /T 9074.1 innerhexcylindricalheadscrewsandwithplain washerswashersassembls
  • – /T 9074.1 openrecessedroundheadscrewsandwithplainwasherswashersassemblies
  • – /T 9074.1 openrecessed panheadscrewsandwithplainwasherswashersassemblies
  • GB/T 9074.18 – cross recessed pan head self-tapping screwsandplain washersassemblies
  • GB/T 9074.18 (S1) – hex head self-tapping screw and plain washer assemblies
  • GB/T 9074.18 (S1) – hex head self-tapping screw and plain washer assemblies
  • GB/T 9074.18 (S2) – cross recessed pan head self-tapping screwsandplain washersassemblies
  • GB/T 9074.18 (S2) – cross recessed pan head self-tapping screwsandplain washersassemblies
  • GB/T 9074.18 (S3) – slottedpan headself-tapping screwsandplain washersassemblies
  • GB/T 9074.18 (S3) – slottedpan headself-tapping screwsandplain washersassemblies
  • GB/T 9074.20 – stripsocketandflatwasherssetpart10character6angleheadfrom-drillingthread-in
  • GB/T 9074.20 – stripsocket10character6angleheadfrom-drillingthread-inandstripflatwasherswasherssetpart
  • GB/T 9074.31 – assemble matchingforconeshapedspringswashers
  • GB/T 9074.32 – withconeshapedspringswashersbolts orscrewsandwashersassemblies
  • GB/T 9074.5 – cross recessed small pan head screwsandplain washersassemblies
  • GB/T 9074.5 – cross recessedsmall panheadscrewsandwithplainwasherswashersassemblies
  • GB/T 9074.6 – cross recessedsmall panheadscrewsandlargeplainwashersassemblies
  • GB/T 91 – cotter pins
  • GB/T 9125 – doubleendthreadstud – B gradeproduct, usefortubewayflangeconnecjoint
  • GB/T 9125 – pipeflangeconnectionsfor doublepointstuds
  • GB/T 9125 – pipeflangeconnectionsfor doublepointstuds
  • GB/T 9125 – pipeflangeconnectionsforhexbolts
  • GB/T 9125 – pipeflangeconnectionsforhexbolts
  • GB/T 9125 – pipeflangeconnectionsforhexnuts, 1 Type
  • GB/T 9125 – pipeflangeconnectionsforhexnuts, 1 Type
  • GB/T 9125 – pipeflangeconnectionsforlarge hex nuts
  • GB/T 9125 – pipeflangeconnectionsforlarge hex nuts
  • GB/T 9125 – pipeflangeconnectionsforstuds
  • GB/T 9125 – pipeflangeconnectionsforstuds
  • GB/T 9125.1 – tubeflangeconnecjointusedoubleendthreadstud – PNindicatfixed
  • GB/T 9125.1 – tubeflangeconnecjointusehexthreads – PN indicatfixed
  • GB/T 9125.1 – pipeflangeconnectionsforhexnuts, 1 Type
  • GB/T 9125.1 – pipeflangeconnectionsforhexnuts, 2 Type
  • GB/T 9125.1 – tubeflangeconnecjointusethreadstudthreads – PN indicatfixed
  • GB/T 9125.2 – tubeflangeconnecjointusehexthreads – indicatfixed grade
  • GB/T 9125.2 – pipeflangeconnectionsforhexnuts, 1 Type
  • GB/T 9125.2 – pipeflangeconnectionsforhexnuts, 2 Type
  • GB/T 9125.2 – tubeflangeconnecjointusethreadstud – indicatfixed grade
  • GB/T 9128 – steeltubeflangeusemetalringjointwashplate
  • GB/T 9160.2 (HM) – rolling bearing accessories – lock nuts – HM series
  • GB/T 9160.2 (HM) – rolling bearing accessories – lock nuts – HM series
  • GB/T 9160.2 (HML) – rolling bearing accessories – lock nuts – HML series
  • GB/T 9160.2 (HML) – rolling bearing accessories – lock nuts – HML series
  • GB/T 9160.2 (KM) – rolling bearing accessories – lock nuts – KM series
  • GB/T 9160.2 (KM) – rolling bearing accessories – lock nuts – KM series
  • GB/T 9160.2 (KML) – rolling bearing accessories – lock nuts – KML series
  • GB/T 9160.2 (KML) – rolling bearing accessories – lock nuts – KML series
  • GB/T 9160.2 (MB) – rollmovingshaftsocket – locktightwashers – MB、MBA type
  • GB/T 9160.2 (MB/MBA) – rollmovingshaftsocket – locktightwashers – MB/MBA type
  • GB/T 9160.2 (MBL) – rollmovingshaftsocket – locktightwashers – MBL isies
  • GB/T 9160.2 (MBL) – rollmovingshaftsocket – locktightwashers – MBL isies
  • GB/T 9160.2 (MS) – roll powerpinsocket – lockingretains – MSseries
  • GB/T 9160.2 (MS) – roll powerpinsocket – lockingretains – MSseries
  • GB/T 9160.2 (MSL) – roll powerpinsocket – lockingretains – MSLseries
  • GB/T 9160.2 (MSL) – roll powerpinsocket – lockingretains – MSLseries
  • GB/T 923 – hex nuts
  • GB/T 923 – acorn nuts
  • GB/T 925 – selflocknuts, hexshaped, light Type
  • GB/T 93 – single coil spring lock washers, regular type
  • GB/T 932 – selflock-typesingleearanchorfixsealies
  • GB/T 946 – withshoulderslotraisedheadthread-in
  • GB/T 95 – plain washers – Product Grade C
  • GB/T 95 – plain washers – Product Grade C
  • GB/T 950 – cross recessedround headwood screws
  • GB/T 955 – waveshapedspringswashers
  • GB/T 956.3 – coneshapedspringswashers
  • GB/T 96.1 – plain washers – largeseries – A Product Grade
  • GB/T 96.2 – plain washers – largeseries – C Product Grade
  • GB/T 97.1 – Grade Aplain washers
  • GB/T 97.1 – plain washers – A Grade product
  • GB/T 97.2 – A Gradechamferedplainwashers
  • GB/T 97.2 – plainwashers, chamfered – A Gradeproduct
  • GB/T 97.3 – cotter pinsforplain washers
  • GB/T 97.4 (L) – set closescrewsforplainwashers(large number)
  • GB/T 97.4 (N) – set closescrewsforplainwashers( general general Type)
  • GB/T 97.4 (S) – set closescrewsforplainwashers(small)
  • GB/T 97.5 (L) – self-tapping screwsandwashersassembliesforplain washers – L Type
  • GB/T 97.5 (N) – self-tapping screwsandwashersassembliesforplain washers – N Type
  • GB/T 99 – slottedround headwood screws