... now material:stainless steel304/316,carbon steel,brass... stainless steel flat washer Detailed Product Description 1) Standard: DIN125, DIN9021, DIN126, DIN440 ... , stainless steel, brass......4) Grade: HV100/140/200, hardened5) Surface: Plain, Black oxide, Zinc Cr+3, Yellow Zinc Cr+6, H ... .D.G.Packing: bulk, box packing, polybag plain washers/flat washers din125 stainless steel