1.stainless steel (304/A2,316/A4) 2.size:M3-m45 3.other ... .finish:ZP,YZP,Plain,Black,Pla 1.stainless steel (304/A2,316/A4)2.size:M3-m45 3.other material ... ,YZP,Plain,Black,Plain304,316 M8 stainless steel washers material: 304 / A2 , 316 / A4size:M3-M45 OR non-standard plain ... / low carbon steel / mild carbon steel / stainless steel (A2/304 , A4/316)Finish : Zinc Plated (CR3+/CR6+), Yellow Zinc Plated ...