5/16-12X1 3/4 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc An (Pack Qty 500) BC-3128ABW

For self starting in thin stainless sheet when corrosion resistance is requiredYou may also like 4-20X3/16 Phillips Pan Thread Rolling Screws 48-2 Fully Threaded 18-8 SS Passivated And Wax (Pack Qty 5,000) BC-0403LPP188.