5/16-18X1 Unslotted Ind Hex Washer Thread Rolling Screws Thread Roll Screw Full Thread Zinc Wax (Pack Qty 1,500) BC-3116RW

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 10-24X3/4 Slotted Indented Hex Washer Thread Cutting Screw Type 23 Fully Threaded Zinc (Pack Qty 6,000) BC-10123SW.