1/4-14X2 1/2 Phillips Flat Self Tapping Screw Type AB Fully Threaded 18-8 Stainless Steel (Pack Qty 500) BC-1440ABPF188

For self starting in thin stainless sheet when corrosion resistance is required 18-8 Stainless: Austenitic 18-8 stainless steelYou may also like 4-24X5/8 #3HD Six Lobe Pan High Low Screw Fully Threaded Zinc (Pack Qty 10,000) BC-0410HTP.