... carbon or stainless steel 2.Finsh:zinc plated 3.Head:hexagon head 4.Fast shipping Hex Steel Drywall Screw ( ... 1).Product name:Hex Steel Drywall Screw (2).Standard:DIN, ... ;3/16"-3/4" (4).Material:carbon steel,iron,stainless steel(5).Length:20-300mm,1"-12"(6).Grade ... :4.8 6.8 8.8 (7).Finish:Plain,zinc,black,nickel,H ...