GB/T 802-1988
Acorn nuts
GB/T 32076.3-2015
High-strength structural bolting saaemblies for preloading-Part 3:System HR—Single chamfered high strength large hexagon nuts
GB/T 96.2-2002
Plain washers-Large series
GB 97-1976
Plain washers-type A
GB 97-1976
Plain washers-type B
GB/T 97.2-2002
Plain washers,chamfered
GB/T 97.4-2002
Plain washers(Small) for screw and washer assemblies
GB/T 97.4-2002
Plain washers(Normal)for screw and washer assemblies
GB/T 97.4-2002
Plain washers(Large)for screw and washer assemblies
GB/T 97.5-2002
Plain washers(Normal)for tapping screw and washer assembly
GB/T 97.5-2002
Plain washers(Large)for tapping screw and washer assembly
GB/T 95-2002
Plain washers
GB/T 862.1-1987
Lock washers external teeth
GB/T 848-2002
Plain washers,Small series
GB/T 9074.29-1988
Samll wasner for tapping screw assembly
GB/T 9074.30-1988
Big wasner for tapping screw assembly
GB/T 18230.5-2000
Plain washers for high-strength structral bolting hardened and tempered
GB/T 1230-2006
Washers for high strength steel structural
GB/T 856-1988
External tab washers
GB/T 32076.5-2015
High-strength structural bolting assemblies for preloading-Part 5：Plain washers
