... stainless steel screw 1)Standard:DIN,ANSI,BS,JIS,GB 2)Size:M3-M76 3)Finish:Tin,Nickel,Chrome round head washer ... - plating, Dacromet,Mechanical Galvanizing, Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup, bowl or according to your request ...