SWD is a construction screw designed to connect two timber members together. The small cap-style head and double thread creates a flexible, hidden assembly with high strength. The differentiated thread pitch creates a clamping effect, reducing the risk of gaps between the timber members.
Simpson Strong-Tie provides products and technology that help people design and build safer, stronger structures.
As a pioneer in the building industry and a world leader in structural solutions, we have an unmatched passion for problem solving through skilful engineering and thoughtful innovation. Our dedication to pursuing ever-better construction products and technology and to surrounding our customers with exceptional service and support has been core to our mission since 1956.