> > > > 5/16-18 x 2 1/2" (FT) Floorboard Thread Cutting Screws (Type F), Coarse, Flat Head, 6-Lobe (T-40 Torx Drive), Black Phosphate
> 5/16-18 x 2 1/2" (FT) Floorboard Thread Cutting Screws (Type F), Coarse, Flat Head, 6-Lobe (T-40 Torx Drive), Black Phosphate