1500 screws per pack. Screws are 2-1/2" long. For Subfloor and Sheathing Projects-Simpson Strong-Tie has re-engineered 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 sheathing using the Quik Drive(C) auto-feed screw driving system. Screws are zinc-coated.