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and agricultural construction—especially where added shear strength or lateral bracing is needed
Self-drilling design for light-medium gauge metal framing
as well as large-flange lay-in headers that are common in curtain-wall construction
High-Quality
0.220" x 3" Strong-Tie SDWS22300DBBMB Timber Screw - Double Barrier Coating, Black | Qty. 250 Metal to Wood Roofing Screws and agricultural construction—especially where addedSimpson 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,