6-20X1/4 6 Lobe Pan Self Tapping Screw Type A B Fully Threaded Zinc (Pack Qty 10,000) BC-0604ABTP

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 1.250 Internal Retaining Ring Stainless Steel (Pack Qty 100) BC-125RISS.