GB/T 861.1-1987
Internal teeth lock washers
GB/T 861.2-1987
Serrated lock washers internal teeth
GB/T 862.2-1987
Serrated lock washers external teeth
GB/T 860-1987
Curved spring washers
GB/T 955-1987
Wave spring washers
GB/T 862.1-1987
Lock washers external teeth
GB/T 956.1-1987
Countersunk external toothed lock washers
GB/T 956.2-1987
Countersunk external serrated lock washers
GB/T 9074.27-1988
Serrated lock washer external teeth for assembly
GB/T 9074.28-1988
Countersunk external toothed lock washer for assembly
DIN 137-1987
Curved spring washers—Type A
DIN 137-1987
Wave spring washers—Type B
DIN 6797-1988
Toothed lock washers with external teeth—Type A
DIN 6797-1988
Toothed lock washers with internal teeth—Type J
DIN 6797-1988
Toothed lock washers with countersunk—Type V
DIN 6798-1988
Toothed lock washers with external teeth—Type A
DIN 6798-1988
Toothed lock washers with internal teeth—Type J
DIN 6798-1988
Toothed lock washers with countersunk—Type V
DIN 6904-1990
Curved spring washers for screw and washer assemblies
DIN 6907-1990
Serrated lock washers with external teeth for screw and washer assemblies
