Quik Drive Deck-Drive #10 x 2-1/2 In. T-25 6-Lobe DSV Collated Deck Screw, Quik Guard Finish (1000 Ct.)For use with Quik Drive fastening system. Quik Guard coating provides corrosion resistance for exterior and certain preservative treated wood applications. Shank is designed to withstand the swelling and shrinkage that is common with fast growth lumber. Rimmed flat head with nibs countersinks easily and provides a clean finished appearance. Low torque threads make for easier driving. High low tip provides cleaner and faster starts. Tan color blends in