Product Review
Simpson SDWS Exterior Double Barrier 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.
- EASY DRIVING: These exterior screws have a 6-lobe T40 drive that provides positive engagement, making the screw easy to drive. The Sawtooth point ensures a fast start, eliminating the need for predrilling in almost every application.
- MULTIPLE APPLICATIONS: Due to the versatile nature of these screws, they can be successfully used in a variety of applications from wood-to-wood ledger applications, mass timber connections including CLT wall-to-wall, floor-to-floor and lap joints.
- DOUBLE BARRIER COATING: Each of these timber screws have double-barrier coating, which provides corrosion resistance that is equivalent to hot-dip galvanization in steel screws, making it suitable for select exterior and preservative-treated wood applications.
- CONVENIENT DESIGN: As they are intended to serve as an alternative to through bolting and traditional lag bolts, these screws are distinguished by the bold thread design, and the under head nibs allow for the head to drive flush to surface with reduced splintering.
- SIMPSON STRONG-TIE RELIABILITY: At Simpson Strong-Tie, our mission is to provide solutions that help people design and build safer, stronger structures. As a pioneer in the building industry, we have an unmatched passion for problem solving through skillful engineering and thoughtful innovation.
