Simpson Collated #9 x 2" T-25 WSV SUBFLOOR Screw, Gray 2000-PkModel No.. WSVF2S Coating Material. Quik Guard Coating Screw Size. #9 Length (in.) 2 Head Diameter (in.) 0. 333 Drive Type. T25 6 Lobe Head Type. Rimmed Flat Head with Nibs Shank Type. 2 3 Threaded Shank Thread Type. Variable Thread Design Point Type. High Low Threaded Point Compatible Tools. Quik Drive PRO200S, PRO250G2, PRO300S Packaging Qty. 2000 Simpson Strong Tie has re engineered its popular subfloor screw to reduce driving force and increase