5/16-9X3/4 Unslotted Indented Hex Washer Self Tapping Screw Type A Full Threaded Zinc (Pack Qty 1,500) BC-3112AW

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 10-24X2 Phillips Pan Thread Rolling Screws Thread Rolling Screw Fully Thread Zinc & Wax (Pack Qty 3,000) BC-1032RPP.