GB/T 862.2-1987
Serrated lock washers external teeth
GB/T 7245-1987
Curved spring washers
GB/T 860-1987
Curved spring washers
GB/T 955-1987
Wave spring washers
GB/T 7246-1987
Wave Single coil spring lock washers
GB/T 848-1985
Small washers
GB/T 852-1988
Square taper washers for I steel
GB/T 901-1988
Double end studs (clamping type)
GB/T 901-1988
Double end studs (clamping type)—L≤2b Non full thread
GB/T 897-1988
Double end studs—b1=1d—Type A
GB/T 897-1988
Double end studs—b1=1d—Type B
GB/T 899-1988
Double end studs b1=1.5d—Type A
GB/T 899-1988
Double end studs —b1=1.5d(Type B)
GB/T 900-1988
Double end studs b1=2d—Type A
GB/T 900-1988
Double end studs b1=2d—Type B
GB/T 15389-1994
Thread rods
GB/T 854-1988
Tab washers with long tab
GB/T 853-1988
Square taper washers for slot section
GB/T 855-1988
Tab washers with long tab and wing
GB/T 804-1988
Hexagon nuts with raised face