1/4-14X3/8 Unslotted Indented Hex Washer Self Tapping Screw Type B Fully Thread 18 (Pack Qty 2,000) BC-1406BW188

For molded or through holes in thin metal, non-ferrous castings, plastics or resin-filled plywood Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum Steel: AISI 1016 - 1024 or equivalent steel.