Galvanized Self tapping screw 1.Material: C1022 2.size:2.5*11mm 3.competitive price Galvanized Self tapping screw Pan ... framing head self tapping screw/DIN7981 Material: C1022 Diameter: 2 ... 32mm,41mm,51mm Specification: Round truss head, Sharp self-tapping screwCoating:Zinc,Yellow Zinc,black,grey phosphatedPackage: 1000pieces/white box ...