12-24X1 1/4 Unslotted Hex washer Self Drilling Screw Full Thread 410 Stainless Steel (Pack Qty 3,000) BC-1220KWMS410

Unslotted Hex washer Self Drilling Screw Full Thread 410 Stainless Steel

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