0.220" x 4" Strong-Tie SDWS22400DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 HCJTZ Pergolas & Gazebos: Maintains structural

Pergolas & Gazebos: Maintains structural integrity in exposed outdoor structures

and ensures consistent code-compliant installation

Bulk Packaged: Large quantity options (like 7

making it ideal for low foundation wall applications

0.220" x 4" Strong-Tie SDWS22400DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 HCJTZ Pergolas & Gazebos: Maintains structuralSimpson 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,