3/8-16X1 1/4 Unslotted Ind Hex Washer Thread Rolling Screws Thread Roll Screw Full Thread Zinc Wax (Pack Qty 500) BC-3720RW

For drilled, punched or corred holes in all ductile metals and punch extruded metals. Eliminates chips, requires low drive torque and provides excel lent resistance to vibrational loosening Steel thread rolling screws shall be made from cold-heading steel conforming to the following chemical composition: Carbon: 0.13-0.27%; Manganese: 0.64-1.71% 18-8: 18-8 stainless steel . 410: 410 austenitic stainless steelYou may also like 6-18X1/2 Unslotted Ind Hex washer Self Tapping Screw Type A Full Thread 18-8 Stainless Steel (Pack Qty 5,000) BC-0608AW188.