1.Name:Zinc plated cup washer 2.Size: M6-M20 3 ... steel,Stainless steel Specification of our washer: 1.NameZinc plated cup washer 2.StandardDIN, IFI, ISO, JIS, AS ... 316L),Brass(H59,H62)5.SizeM6-M206.FinishPlain, Zinc plated,Passivated, Nickle plated, H.D.G., Black Oxided, Dacromet,Geomet ... 304L,316,316L),Brass(H59,H62)5.FinishPlain, Zinc plated,Passivated, Nickle plated, H.D.G., Black Oxided, Dacromet, ...