PrimeGuard Plus Gold Exterior Screws. 25-pound bucket. Type 17 point reduces need to pre-drill boards. Countersinking bugle head prevents heads from popping out, leaves smooth finish. Features a proprietary polymer coating that protects the fastener against corrosive elements. Lifetime guarantee against rust and corrosion, including when used with treated lumber. For exterior applications, Including decks, siding, gazebos, and playsets.