0.220" x 4" Strong-Tie SDWS22400DB Timber Screw - Double Barrier Coating, Tan | Qty. 600Simpson Strong Tie SDWS Exterior Timber Screws are engineered for serious strength in outdoor wood projects. From framing a new deck to building a retaining wall, these screws deliver lasting hold and corrosion resistancewithout slowing you down. They feature a sharp, fast start point that eliminates the need to pre drill, while the bold thread design locks into wood for a secure grip. A large washer style head increases pull through resistance and