0.220" x 8" Strong-Tie SDWS22800DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 Fiber-Cement Siding Nails and joining—perfect for through-bolting

and joining—perfect for through-bolting

improving overall building stability in post-frame and masonry construction

while a sharp Type 17 point delivers fast starts and reduces the need for predrilling

Stainless steel construction – Superior corrosion resistance for exterior and marine use

0.220" x 8" Strong-Tie SDWS22800DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 Fiber-Cement Siding Nails and joining—perfect for through-boltingSimpson 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,