5/16-12X1 1/4 Slotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc (Pack Qty 1,000) BC-3120ABSW

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 4-24X5/8 Phill Full Contour Truss Self Tapping Screw Type AB Fully Thread Zinc (Pack Qty 10,000) BC-0410ABPT.