1/4"-20 x 2-1/2" UNC Type F Floorboard Thread Cutting Phillips Dr Flat Head Screw Zinc Plated - R. E. Glover Ltd.
1/4"-20 x 2-1/2" Floorboard Thrd Cut (Phil. Dr) Flat HD F Screw PLTD
1/4"-20 x 2-1/2" UNC Type F Floorboard Thread Cutting Phillips Dr Flat Head Screw Zinc Plated