3/8-9X1 1/2 Unslotted Indented Hex Washer Self Tapping Screw Type A Full Threaded Zinc (Pack Qty 600) BC-3724AW

A thread forming tapping screw with wider spaced threads than a Type AB and a gimlet point For self starting in thin (.015-.050 thick) metal or resin-filled plywood.You may also like 2-28X1/2 Phillips Flat Thread Rolling Screws 48-2 Fully Threaded Zinc And Wax (Pack Qty 10,000) BC-0208LPF.