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white-painted head
and joining—perfect for through-bolting
low-profile finish is just as important as long-term strength
Strong Holding Power: Designed for use in normal-weight concrete for reliable performance
0.220" x 8" Strong-Tie SDWS22800DBB Timber Screw - Double Barrier Coating, Black | Qty. 400 Helical Wall Ties white-painted headSimpson 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,