... ,ANSI,BS,JIS,GB 2)Size:M3-M76 3)Finish:Tin,Nickel,Chrome round head washer stainless steel screw1) Standard: DIN, BS, ... Carbon Steel, Alloy Steel, Stainless Steel, Brass, Aluminum, etc.4) Finish: Zinc Clear, Zinc Yellow, Black, Nickel-plating, Tin-plating, Chrome ... plating, Dacromet,Mechanical Galvanizing, Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup, bowl or according to your ...