Round head
Countersunk head
Raised countersunk head
Cheese
Low cheese head
Raised cheese
Cheese with hole
Small plain washer
Plain washer
Large plain washer
Spring washer
Ex-teeth serrated washer
Conical spring washers
In-teeth washer
Ex-teeth CSK washers
Ex-teeth washer
Curved spring lock washer
Wave spring washer
GB/T 9074.2-1988
Cross recessed pan head screws and external teeth serrated lock washers 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 234-1999
Cross recessed pan head screws and external teeth serrated lock washers assemblies
Q 234-2012
Cross recessed pan head screws and external teeth serrated lock washers assemblies
CNS 4409-1981
Cross recessed raised cheese head screws with type H cross recess,ex-teeth serrated lock washers a and large plain washer assemblies
