Dual-evaluated as a 1:1 replacement for 8d and 10d nails, these #9 gauge subfloor screws deliver withdrawal and shear characteristics that exceed those of 10d common nails. Reduced torque allows for less tool wear and faster cycle times — that’s the practical advantage contractors care about when they’re driving thousands of screws per day.
The WSV212S earns its place on Montana jobsites through genuine performance advantages. Simpson Strong-Tie offers their Limited Warranty against defects in material and manufacturing with standard terms and conditions applying. At 4 out of 5 stars across 15 reviews, contractors appreciate the speed improvements but note the higher cost compared to nails.
Performance Specifications
The #9 gauge construction (approximately 0.148-0.165 inch shank) at 2-1/2 inches length provides the structural capacity to function as a dual-evaluated replacement for both 8d and 10d subfloor nails. ICC-ES ESR-1472 certification confirms compliance with International Building Code (IBC), International Residential Code (IRC), City of Los Angeles Building Code (LABC), and City of Los Angeles Residential Code (LARC).
| Specification | Value |
|---|---|
| Gauge | #9 (approx. 0.148-0.165 in. shank) |
| Length | 2-1/2 inches (63.5 mm) |
| Material | Steel |
| Finish | Yellow-Zinc (dichromate) coating (ASTM F1941) |
| Drive Type | T25 6-Lobe (Star Drive) |
| Head Type | Rimmed Flat (Wafer) head with nibs for clean countersinking |
| Thread Design | Variable thread design with ribbed head for bit retention |
| Point Type | High-low threaded point with redesigned tip |
The redesigned tip and thread pattern facilitate easier starts with up to 25% less torque required, enhancing installation speed and reducing tool wear. The deep six-lobe recessed head ensures secure bit retention and clean countersinking, while the screw’s design allows for easy removal if future access is needed.
Installation Efficiency and Real-World Applications
Use with Quik Drive auto-feed systems for maximum efficiency. Compatible tools include Quik Drive PRO250G2 (Subfloor system), Quik Drive PRO200S, Quik Drive PRO300S, and Quik Drive Project Pro. Engineered for efficiency, these screws require less torque and enable faster installation—up to 20% quicker—especially when used with a StrongDrive automatic tool.
Each package includes 1,500 collated WSV Subfloor Screws and one T25 6-Lobe Drive Bit (BITTX25). The collated strip format keeps contractors moving without constant reloading.
Recommended for OSB, plywood, and Advantech flooring/sheathing products in dry-service wood-frame subfloors (Interior). The WSVF variant features a gray Quik Guard coating for use in fire-retardant wood-based materials.
Contractors report four consistent benefits in their reviews: excellent speed and ease of starting, significantly reduced floor squeaks, smooth operation with Quik Drive systems, and easy removal if needed. The main complaints center on higher cost compared to nails and the requirement for specific Quik Drive tools for best performance.
They offer high holding power to minimize floor squeaks by reducing gaps between joists and subfloor. For Montana’s freeze-thaw cycles that stress floor systems, that gap reduction matters more than in stable climates.
Frequently Asked Questions
Q: How do these screws compare to standard subfloor nails in actual strength tests?
Dual-evaluated as a 1:1 replacement for 8d and 10d nails with withdrawal and shear characteristics that exceed those of 10d common nails. These zinc-finished steel screws outperform traditional nails in shear, lateral, and withdrawal strength, meeting or exceeding the standards for wood frame diaphragms.
Q: What specific Quik Drive tools work with these collated screws?
Compatible tools include Quik Drive PRO250G2 (Subfloor system), Quik Drive PRO200S, Quik Drive PRO300S, and Quik Drive Project Pro. Replacement bits are available as BITTX25 (T25 6-Lobe replacement bit).
Q: Are these screws suitable for exterior or treated lumber applications?
These are specifically rated for dry-service wood-frame subfloors (Interior) with yellow-zinc coating per ASTM F1941. They’re not designed for exterior applications or direct contact with treated lumber.
Q: What actual installation speed improvements do contractors see?
Engineered for efficiency, these screws enable faster installation—up to 20% quicker—especially when used with a StrongDrive automatic tool. The redesigned tip and thread pattern facilitate easier starts with up to 25% less torque required.
Q: How many screws come in each package, and what else is included?
Each package includes 1,500 collated WSV Subfloor Screws and one T25 6-Lobe Drive Bit (BITTX25).
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