Designed for fixing plasterboard to metal studding or wooden battens. Bugle head with Phillips recess allows the screw to be driven without damaging the board surface. Features a black phosphate finish and includes a driver bit. These specialist drywall screws are perfect for fitting plasterboard, fibreboard, and other insulation board types to wood or steel studding. An extra-deep insert bit recess delivers a firmer positive drive. With an incredibly sharp piercing point and coarse thread, it ensures speedy insertion and improved holding power. The countersunk Phillips drive bugle head minimizes surface damage for a smoother finish, sinking effortlessly into dry lining without the need for countersinking. The black phosphate coating increases its resistance to corrosion and rust. Coarse thread specialist screws for drywall applications. Suitable for plasterboard, fibreboard and other insulation board types. Used for fitting boards to wood or steel studding. Made from fully hardened C1022 steel. Extra-deep insert bit recess for a firmer positive drive. Extremely sharp piercing point. Thread designed for fast insertion and improved holding power. Bugle head reduces risk of surface damage for a smoother finish. Sinks effortlessly into the dry lining, no need for countersinking. Black phosphate finish. Phillips bit included with each box.