1/4-14X1/2 Phillips Pan Self Tapping Screw Type AB Fully Threaded Zinc (Pack Qty 4,000) BC-1408ABPP

For self starting in thin (.015-.050 thick) metal or resin-filled plywood. Recommended over a Type-A, particularly in brittle materialsYou may also like 1/4X4 Phillips Flat Concrete Screw With Drill Bit Blue Perma Seal (Pack Qty 100) BC-1464CNPF.