1/4-14X3 1/2 Slotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc (Pack Qty 500) BC-1456ABSW

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 0-80 X 5/16 MS51958, Phil Pan Machine Screw Fine Full Thread 300 Series S/S DFAR (Pack Qty 5,000) BC-MS51958-123.