0.220" x 10" Strong-Tie SDWS221000DB-R12 Timber Screw - Double Barrier Coating | Qty. 12 Roof Boots HVAC ductwork and steel panel

HVAC ductwork and steel panel attachment

Post-to-beam reinforcement

Code-Compliant Design: Meets applicable building codes for safe and reliable performance

Built for maximum uplift resistance

reliable support for angled joist connections in wood construction

0.220" x 10" Strong-Tie SDWS221000DB-R12 Timber Screw - Double Barrier Coating | Qty. 12 Roof Boots HVAC ductwork and steel panelSimpson 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,