0.220" x 8" Strong-Tie SDWS22800DBB Timber Screw - Double Barrier Coating, Black | Qty. 400 Quik Drive Wood Decking Systems Architectural designs requiring concealed hardware

Architectural designs requiring concealed hardware for a cleaner aesthetic

engineered wood and polymer materials

Pergolas & Gazebos: Maintains structural integrity in exposed outdoor structures

Insert screw until eyelag is snug against the surface

Versatile Application: Intended for use with 4x4 lumber with a slotted base for adjustable installation

0.220" x 8" Strong-Tie SDWS22800DBB Timber Screw - Double Barrier Coating, Black | Qty. 400 Quik Drive Wood Decking Systems Architectural designs requiring concealed hardwareSimpson 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,