Simpson 0.220 x 3" Black, Strong-Drive SDWS TIMBER Screw Double Barrier Straps and Ties Chemically bonds with the concrete

Chemically bonds with the concrete to provide a structural repair

Fasteners Required: 5/8" Machine Bolts - Beam (2)

Dual undercutting embossments on each clip segment allow secondary expansion if a crack forms and intersects the anchor location

reducing labor time and physical strain on the crew

Simpson 0.220 x 3" Black, Strong-Drive SDWS TIMBER Screw Double Barrier Straps and Ties Chemically bonds with the concreteThe Simpson Strong Drive SDWS Timber Screw in 0. 220" x 3" with Double Barrier Coating is a high strength structural fastener engineered as a direct, code compliant alternative to traditional lag screws and through bolts in wood framing and heavy timber connections. Featuring a SawTooth point, bold thread design, and a T40 6 lobe drive system, this black coated timber screw delivers fast, reliable installation in a wide range of wood to wood fastening