0.270" x 16" Strong-Drive SDWF2716-TUW Floor-To-Floor Screw Kit, Pkg 25The Simpson Strong Tie Strong Drive SDWF Floor to Floor Screw makes it easy to tie upper and lower walls together across a floor system, creating a strong, reliable connection that helps resist wind uplift and settlement over time. Instead of complicated hardware, this single screw installs quickly from the inside of the building, no exterior scaffolding or ladder work needed. The Take Up Washer (TUW) features a structure that naturally settles over