12-14X1 Unslotted Hex Washer With Number 4 Point Full Thread Self Drilling 410 Stainless (Pack Qty 2,000) BC-1216KW4410

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 4-20X5/8 6 Lobe Flat Thread Rolling Screws 48-2 Fully Threaded Zinc & Wax (Pack Qty 10,000) BC-0410LTF.