1/4-14X1/2 6 lobe Pan Self Tapping Screw Type AB Fully Threaded 18-8 Stainless Steel (Pack Qty 2,000) BC-1408ABTP188

For self starting in thin stainless sheet when corrosion resistance is required 18-8 Stainless: Austenitic 18-8 stainless steelYou may also like 5/16-18x1 1/2 MS35190 Military Phillips Flat 82 Degree Full Thread Machine Screw Cadmium (Pack Qty 500) BC-MS35190-308.