... )Material:Steel,Stainless steel 4)Finish:Zinc,Black,Nickel,TinMetal Square Washer1) Standard: DIN, BS, IFI, JIS, ISO,GB,ANSI ... Yellow, Black, Nickel-plating, Tin-plating, Chrome- plating, Dacromet,Mechanical Galvanizing, Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup ... : remove all burs and sharp edges.7) Packing: Carton, Box, Bag, Pallet or according to your request.8) For non ...