5/16-12X1 1/4 A/F.428-.437 Unslotted Ind Hex Washer Serrate Self Drill Full Thread Zinc (Pack Qty 700) BC-312007KWS

Used to attach plywood, soft wood or metal to metal. Serrated washer design adds greater holding power to components subject to vibrations caused by repeated movements. The 1/4-inch diameter screws, for instance, are commonly used to attach reinforcing strut or L-angle to garage doorsYou may also like 3-24X1/4 Phillips Pan Thread Rolling Screws 48-2 Fully Threaded Zinc And Wax (Pack Qty 10,000) BC-0304LPP.