... round head washer stainless steel screw 1)Standard:DIN,ANSI,BS,JIS,GB 2)Size:M3-M76 3)Finish:Tin,Nickel,Chrome round ... head washer stainless steel screw1) Standard: DIN, BS, ... ) Size: M3–M763) Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass, Aluminum, etc.4) Finish: ... Galvanizing, Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup, bowl ...