Simpson 0.220 x 3" Black, Strong-Drive SDWS TIMBER Screw Double Barrier PACK:250 Pk Designed with a self-undercutting

Designed with a self-undercutting

and 1/4" to be formed to a 90 deg

connections of I-joists to headers in engineered wood framing

reducing fatigue and keeping projects on schedule

What applications are these screws designed for

Simpson 0.220 x 3" Black, Strong-Drive SDWS TIMBER Screw Double Barrier PACK:250 Pk Designed with a self-undercuttingThe 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