1.Name:Non-standard flat washer with small holes 2.Size: M6 ... Material:Carbon steel Specification of our washer: 1.NameNon-standard flat washer with small holes 2.StandardDIN, IFI, ISO ... 1035,#1045), Stainless steel(303,304,304L,316,316L),Brass(H59,H62)5.SizeM6-M20 6.FinishPlain, Zinc ... 1035,#1045), Stainless steel(303,304,304L,316,316L),Brass(H59,H62)5.FinishPlain, Zinc plated,Passivated, Nickle plated ...