1/4-20X1/2 Slotted Indent Hex Washer Serrated Thread Cutting Screw Type 1 Full Thread Zinc (Pack Qty 4,000) BC-14081SWS

May be used in steel sheets, structural shapes, special alloy steels, cast iron, brass or plastics AISI 1016 - 1024 or equivalent steel Screws shall be quenched in liquid and then tempered by