6-20X1/4 Square Truss Self Tapping Screw Type A B Fully Threaded Zinc (Pack Qty 5,000) BC-0604ABQT

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 4-40X3/8 Phillips Pan Thread Cutting Screw Type F Fully Threaded Black Zinc (Pack Qty 10,000) BC-0406FPPBZ.