SIMPSON Strong-Tie Strong-Drive WSV #9 x 1-3/4in T25 Flat Head, Collated Subfloor Screw, Yellow Zinc - 1000pk

FEATURES:

• Redesigned tip and thread pattern provides easy starts and up to 25% less torque while driving makes for up to 20% faster driving
• Less installation torque also means less wear on tools
• Deep 6-lobed recessed ribbed head provides clean countersinking and more secure bit retention for fewer cam-outs
• Holding power of WSV screws reduces the gaps between the joist and subfloor that cause floor squeaks
• WSV screws can be easily backed out, allowing for future access to floor cavities
• 6-lobe T25 drive bit (included)
• Dual-evaluated under ICC-ES AC233 and AC120 for wood-frame subfloor fastening