DIN 6900-1-1990

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

DIN 6900-1-1990

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

DIN 6900-2-1990

Slotted pan head screws， plain and curved spring washer assemblies

DIN 6900-2-1990

Slotted pan head screws， large plain and curved spring washer assemblies

DIN 6900-2-1990

Cross recessed raised cheese head screws with type Z 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 6900-3-1990

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

DIN 6900-4-1990

Slotted pan head screws and Serrated lock washers with external teeth assemblies

DIN 6900-4-1990

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

DIN 6900-4-1990

Cross recessed raised cheese head screws with type Z 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

Q 234-1999

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

Q 236-1999

Cross recessed pan head screws, plain and spring washers assemblies

JIS B1188-1-1995

Cross recessed pan head screw and small plain washer assemblies-Table 1

JIS B1188-1-1995

Cross recessed pan head screw and plain washer assemblies-Table 1

JIS B1188-1-1995

Cross recessed pan head screw and spring washer assemblies-Table 1

JIS B1188-1-1995

Cross recessed pan head screw and external teeth serrated lock washer assemblies-Table 1

JIS B1188-1-1995

Cross recessed pan head screw and conical spring washers assemblies-Table 1

JIS B1188-1-1995

Cross recessed pan head screw ，plain washer and spring washer assemblies-Table 1