Thread Forming Cutting Screws 1 16 of 635 results for Industrial Scientific Fasteners Screws Thread Forming Cutting Screws Flat Head Floorboard Screws Torx Star Drive Black Phosphate Finish Choose Diameter 10 5 16 1 4 5 16 3 8 1 2 Choose Length 1 inch Thru 6 inches Thread Cutting Countersunk Head Alloy…