8-18X5/16 Phillips Pan Self Tapping Screw Type AB Fully Threaded 18-8 Stainless Steel (Pack Qty 5,000) BC-0805ABPP188

For self starting in thin stainless sheet when corrosion resistance is requiredYou may also like 2-28X3/4 Phillips Flat Thread Rolling Screws 48-2 Fully Threaded Zinc And Wax (Pack Qty 10,000) BC-0212LPF.