GB/T 889.1-2015

Prevailing torque type hexagon nuts(with non-metallic insert),style 1

GB/T 18230.2-2000

Hexagon bolts for high-strength structural bolting with large width across flats(short thread)-Property classes 8.8 and 10.9

GB/T 889.2-2016

Prevailing torque type hexagon nuts(with non-metallic insert),style 1-Fine pitch thread

GB/T 32076.7-2015

High-strength structural bolting saaemblies for preloading-Part 7:System HV-Hexagon bolt with large width across flats and nut assemblies M39～M64

GB/T 32076.7-2015

High-strength structural bolting saaemblies for preloading-Part 7:System HV—High strength large hexagon nuts M39～M64

GB/T 32076.7-2015

High-strength structural bolting saaemblies for preloading-Part 7:System HV-Washers for high strength steel structural

GB/T 32076.4-2015

High-strength structural bolting saaemblies for preloading-Part 4:System HV-Hexagon bolt with large width across flats and nut assembliess

GB/T 6178-1986

Hexagon slotted and castle nuts,style 1

GB/T 32076.4-2015

High-strength structural bolting saaemblies for preloading-Part 4:System HV—High strength large hexagon nuts

GB/T 6178-1986

Crown nut with slot,style 1

GB/T 18230.1-2000

Hexagon bolts for structural bolting with large width across flats-Property classes 8.8 and 10.9

GB/T 9457-1988

Hexagon slotted and castle nuts,style 1,Fine pitch thread

GB/T 9457-1988

Crown nut with slot,style 1,,Fine pitch thread

GB/T 5788-1986

Hexagon head flange bolts with reduced shank—Type A

GB/T 5788-1986

Hexagon head flange bolts with reduced shank—Type B

GB 51-1976

Small hexagon nuts

GB 51-1976

Single chamfered small hexagon nut

GB/T 6171-2000

Hexagon nuts,style 1,with fine pitch ehread

GB/T 6171-2000

Single chamfered small hexagon nut,style 1,with fine pitch ehread

GB 52-1976

Hexagon nuts