4-40X5/16 Pozi Drive Pan Thread Rolling Screws Thread Rolling Screw Full Thread Zinc &Wax (Pack Qty 10,000) BC-0405RZP

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 12-14X4 Phillips Modified Truss head Self Drilling Screw Full Thread Zinc (Pack Qty 750) BC-1264KPM.