#6 x 2-1/4" Trim Head Square Drive Drywall Screw - Black Phosphate, Pkg 3000Daggerz brand drywall screws are a high quality screw designed for drywall to wood fastening jobs. A #2 self drilling point drills through metal easily and eliminates the need for any pre drilling. These screws are designed to anchor drywall to metal studs and the small trim head sits flush with the drywall once installed. The black phosphate coating is only suitable for use in dry interior environments. For Metal Thickness . 033" . 112"