GB/T 9074.1-1988

Cross recessed pan head screws and plain washers assemblies

GB/T 9074.2-1988

Cross recessed pan head screws and external teeth serrated lock washers assemblies

GB/T 9074.3-1988

Cross recessed pan head screws and spring washers assemblies

GB/T 9074.4-1988

Cross recessed pan head screws, plain and spring washers assemblies

GB/T 9074.5-1988

Cross recessed small pan head screw and plain washer assemblies

GB/T 9074.6-1988

Cross recessed small pan head screw and large plain washer assemblies

GB/T 9074.7-1988

Cross recessed small pan head screw and spring washer assemblies

GB/T 9074.8-1988

Cross recessed small pan head screw, plain and spring washer assemblies

GB/T 9074.9-1988

90° Cross recessed countersunk head screw and countersunk serrated lock washer assemblies

GB/T 9074.10-1988

90° Cross recessed raised countersunk head screw and countersunk serrate lock washer assemblies

ISO 10644-S3-2009

Pan head screws with type H cross recess and plain washer assemblies

ISO 10644-S3-2009

Pan head screws with type H cross recess and large plain washer assemblies

DIN 6900-1-1990

Pan head screws with type H cross recess and small plain washer assemblies

DIN 6900-1-1990

Pan head screws with type H cross recess and plain washer assemblies

DIN 6900-1-1990

Pan head screws with type H cross recess and large plain washer assemblies

DIN 6900-2-1990

Cross recessed raised cheese head screws with type H cross recess and curved spring washer assemblies

DIN 6900-3-1990

Pan head screws with type H cross recess and spring lock washer assemblies

DIN 6900-4-1990

Cross recessed raised cheese head screws with type H cross recess and Serrated lock washers with external teeth assemblies

Q 230-1999

Cross recessed pan head screws and plain washers assemblies

Q 232-1999

Cross recessed pan head screws and spring washers assemblies