Simpson Strong-Tie has re-engineered its popular subfloor screws to reduce driving force and increase installation speed. The new Strong-Drive® WSV Subfloor screw has been developed for fastening subfloor sheathing using the Quik Drive® auto-feed screw driving system.
The ideal replacement for 8d and 10d nails. The Strong-Drive WSV Subfloor screw is the only fastener to be dual-evaluated per ICC-ES AS233 and ICC-ES AC120 under ASTM D1761 and ASTM D1037 test criteria. This testing indicates that the WSV Subfloor screws have lateral, shear and withdrawal values that exceed those of 10d common nails, and diaphragms built with WSV Subfloor screws meet or exceed the strength and stiffness of wood frame diaphragms built with 10d nails.Download the Flier
The WSV screw gives visual confirmation of a secure joist connection by countersinking, while "shot-in" power-driven fasteners or hand-driven nails look the same whether or not they hit the joist. Missed fasteners could result in floor flexing that can cause squeaking in other parts of the structure and reduced diaphragm load capacity.
Squeaking of newly installed floors can result in callbacks (expensive travel, labor, materials) and possibly a damaged reputation. Fastening subflooring with WSV screws, rather than power-driven fasteners or hand-driven nails, provides the power necessary to pull together joists and plywood (or WSP sheathing), eliminating gaps, holding the materials firm, and thereby reducing squeaks.
The Quik Drive PRO250G2 Subfloor System is the ideal choice for driving collated Strong-Drive WSV Subfloor screws. Stand-up driving allows for improved labor-savings, less user fatigue and better consistency.