Simpson Strong Tie - Strong-Drive WSV #9 Subfloor Screw - 2" (2000 Pack)

Simpson Strong-Tie has redesigned its popular subfloor screw to reduce driving force and increase installation speed. The new Strong-Drive WSV Subfloor screw has been developed for fastening subfloor coverings using the self-feeding Quik Drive screw system. The Strong-Drive WSV Subfloor screw is the only fastener to have been dual-assessed to ICC-ES AC233 and AC120 standards for fixing timber frame subfloors. These tests indicate that WSV Subfloor screws have higher lateral strength, shear, and shrinkage values ​​than regular 10d nails, and that diaphragms constructed with WSV Subfloor screws meet or exceed the strength and stiffness of wood frame diaphragms constructed with 10d nails. Also, the Strong-Drive WSVF Subfloor screw for fire-resistant wood-based materials. The Strong-Drive WSVF Subfloor screw is a variant available with a Quik Guard gray coating whose corrosion resistance is recognized in IAPMO UES ER-192 for exposures 1 and 3, as described in ICC-ES AC257. Like the WSV Subfloor screw, the WSVF Subfloor screws are designed for applications in dry environments. The WSVF screw coating system provides corrosion resistance for use with wood and wood-based materials in dry service where the wood and wood-based materials have treatment retentions typical of AWPA Use Categories 1 through 4A and wood and wood-based materials treated with a fire retardant that are recognized in an evaluation report where the corrosion effects of the fire retardant chemical are referenced against the screw coating systems. code-required protection for carbon steel fasteners.

• Redesigned tip and thread make starts easier and reduce tightening torque by 25% (test data shows Strong-Drive WSV Subfloor screw requires 25% less tightening torque in mono-material glulam) - allows for up to 20% faster tightening (test data shows redesigned WSV thread allows screws to be installed 20% faster quickly)
• Lower installation torque also means less tool wear
• The recessed 6-lobe ribbed head allows for clean milling and a more secure hold of the bit, reducing the number of pullouts
• The holding power of WSV screws reduces gaps between the joist and subfloor that cause floor squeaks.