0.220" x 10" Strong-Tie SDWS221000DBB Timber Screw - Double Barrier Coating, Black | Qty. 250 Flat Head Blue Masonry Screws When you’re building outdoors

When you’re building outdoors

The T-20 star drive reduces cam-out

and reliability in concrete anchoring

The 1-5/8" x 1-5/8" Back-to-Back Strut Channel with Short Slots 10 ft

0.220" x 10" Strong-Tie SDWS221000DBB Timber Screw - Double Barrier Coating, Black | Qty. 250 Flat Head Blue Masonry Screws When you’re building outdoorsSimpson 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,