1/4-14X3 1/2 Phillips Flat Self Drill Screw Full Thread 18-8 Stainless Steel (Pack Qty 300) BC-1456KPF188

Type BSD: The 18-8 stainless drill screw offers superior corrosion resistance while the 410 stainless screw will drill through harder material than the 18-8. The hardness of the material to be drilled should be a minimum of 10-20 Rockwell hardness points less than the screw’s hardness Minimum torques are the same for stainless and steel self-drill screws. Drill time is 2.5 seconds for a 1mm thick plate 410 or 18-8 stainless steelYou may also like 4-40X7/16 MS51957-B Phil Pan M/S Coarse Full Thread 300 Series S/S DFAR Black Oxide (Pack Qty 3,000) BC-MS51957-16B.