... screw 1.size of din7981:M3-M48 1/4"-3" 2.Standard:DIN ANSI JIS ... 3.surface:Plain,Zinc,Black,H.D.G. DIN7981 Self tapping screw1.size of din7981:M3-M48 1/4"-3" 2.Standard ... .surface:Plain,Zinc,Black,H.D.G.4.material of din7981:stainless steel ,carbon steel5.packing:general export packing poly bag ...