... ,GB,ANSI 2) Size: M3-M76 3) Type:flat,plain,square,cup washer 4)High quality and low price 1) Standard ... : M3–M763) Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass, Aluminum, etc.4) Finish: Zinc Clear, Zinc Yellow, Black, Nickel-plating ... , Dacromet,Mechanical Galvanizing, Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup, bowl or according to your request.6 ...