Bugle Phillips head drywall screw with fine thread, made of hardened carbon steel C1022A. Bugle head prevents tearing gypsum paper during installation. Fine thread design for fastening drywall / plasterboard to metal studs. Sharp point for self-tapping without pre-drilling. Widely used in interior partition wall, ceiling decoration. Sizes available: #6,#7,#8,#10; length 13–150mm. Finish: black phosphate / grey phosphate / zinc plated.