Simpson WSV Subfloor Screw #9 x 3 in. T25 Yellow Zinc Collated 1000-Pack Auto-Set Driver Bit which provides a protective coating

which provides a protective coating against corrosion

as well as large-flange lay-in headers that are common in curtain-wall construction

The QDPROSDX150G2 drives 3/4 to 1-1/2 in

The Simpson HD19 is installed with bolts into posts or columns

Simpson WSV Subfloor Screw #9 x 3 in. T25 Yellow Zinc Collated 1000-Pack Auto-Set Driver Bit which provides a protective coatingThe Simpson Strong Tie Strong Drive WSV SUBFLOOR Screw (WSV3S) is a collated, #9 x 3 inch structural fastener engineered and extensively tested to efficiently meet demanding wood subfloor applications. Developed specifically for fastening subfloor sheathing using the Quik Drive auto feed screw driving system, this screw has been re engineered from the ground up to reduce driving force and increase installation speed saving time and money on every job.