drywall Screws 1Material:1022 2surface:black,grey 3Specification:philip bugle head,black,grey hosphated fine,coarse threaded C1022 Philips high quality Drywall Screw Diameter 3.5~4.8mmMaterial: Mild Carbon Steel C1022ASize: 3.5,3.9,4.2,4.8(6#-10#)Length: 15 to 150mm More Details:Product Pictures: