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Simpson SDW Structural Wood Screws are designed with a shorter thread length to fasten multi-ply members such as trusses, engineered lumber products and solid-sawn lumber. Large washer head provides maximum bearing area and deep 6-lobe recess reduces cam-out. Requires type T-40 bit. Optimal screw lengths provide maximum penetration while preventing the point from protruding out the back member.
- Type T-40 Bit required with deep 6-lobe recess to prevent cam-out
- Low-profile heads allow hardware installation to be virtually flush
- Head is stamped with Simpson Strong Tie Stamp and fastener length for easy identification
- Bold thread design provides superior holding power and cInches fastened members together for consistent installation
- 1-9/16-Inch thread length and recommended installation with a low-speed 1/2-Inch drill and T-40 bit
