Categroies:flat washer,square tapper washer,spring washer,high steelwasher,loading washer,fender washer,nuts,nails and stamping parts. Standards:DIN, US, AS,NFE,USS/SAE,ASTM Finish:ZP(YZP, BZP), BLACK, PLAIN, POLISH etc. Materials:Low Carbon Steel,45# Steel, SS304, SS316etc Packing:carton, banded on pallets Payment Terms:L/C or T/T