Do it 0 x 3-1/2 In. PrimeGuard Plus Ceramic Finish Combo Drive Exterior Screw is a premium-quality screw crafted specifically for outdoor projects such as decks, docks, fences, and gazebos. It features a durable PrimeGuard Plus ceramic finish over a galvanized base, delivering exceptional corrosion resistance for long-lasting performance. The screw is designed with a combination drive, compatible with both square and Phillips bits, making installation versatile and convenient. Its extra coarse thread pattern helps reduce wood splitting and friction, while the Type 17 drill tip allows for easy driving into wood without pre-drilling. The screw’s color is matched to treated wood, ensuring a seamless and attractive look when used with treated lumber. Fully compliant for use with treated lumber, this screw is a dependable choice for all your exterior construction needs. Model Number: 200703