#10 x 1-1/2" Phillips Bugle Head Laminating Drywall Screw - Black Phosphate, Pkg 5000Daggerz brand laminating drywall screws are a high quality screw designed for gypsum to gypsum applications. They feature a bugle head that countersinks flush into softer materials. The coarse threads allow for more material to sit between the threads as they are installed. The black phosphate coating is traditional in drywall screws and is designed for use in dry interior environments only.