0.220″ x 4″ Strong-Tie SDWS22400DBB-R50 Timber Screw – Double Barrier Coating, Black | Qty. 50

Simpson Strong-Tie SDWS Timber Screws (Exterior Grade) are your go-to fasteners when strength and weather resistance matter. Ideal for outdoor framing, landscaping, or heavy-duty builds, these structural wood screws help DIYers get pro-level results without the need for pre-drilling.

Coated with a high-performance Double-Barrier finish, they resist corrosion from rain, moisture, and treated lumber. The large washer head adds serious clamping power, while the aggressive thread design ensures a fast bite and tight hold in even the toughest wood.

Whether youre building a retaining wall, deck frame, or outdoor stair set, these screws are engineered to perform in real-world outdoor conditions.

Key Features:

• Double-Barrier Coating Engineered for high corrosion resistance in outdoor environments and pressure-treated wood.
• No Pre-Drilling Required Sa