CNS 4409-1981

Hexagon head bolts and plain washer assemblies

CNS 4409-1981

Hexagon head bolts，large plain washers and wave spring lock washers assemblies

CNS 4409-1981

Hexagon socket head cap screws and large plain washers assemblies

CNS 4409-1981

Knurled hexagon socket head cap screws and large plain washers assemblies

CNS 4409-1981

Hexagon socket head cap screws and conical spring washers assemblies

CNS 4409-1981

Hexagon socket knurled head cap screws and conical spring 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

CNS 4410-1983

Hexagon head tapping screw and plain washer assemblies-type C