... :Carbon steel,Stainless steel Specification of our washer: 1.NameZinc plated cup washer 2.StandardDIN, IFI, ISO, JIS, AS,BS, EN, SAE ... steel(303,304,304L,316,316L),Brass(H59,H62)5.SizeM6-M206.FinishPlain, Zinc plated,Passivated, Nickle plated, H.D.G., Black Oxided ... Stainless steel(303,304,304L,316,316L),Brass(H59,H62)5.FinishPlain, Zinc plated,Passivated, Nickle plated, H.D.G., Black Oxided, Dacromet ...