Item Type: Thread Repair Kit Thread Insert Material: Color Zinc Plated Carbon Steel Thread Insert Specification: M6x1 (Outer Diameter M9x1) Application: Widely used in automotive, rail car, munition, ship, home appliance, construction machinery, communications equipment, electronics, engineering plastic, metal die casting and other fields Package List 10 x Thread Insert 1 x Twist Drill Bit 1 x Installation Tool 1These thread inserts have self-tapping ability so that the base metal does not need to be tapped beforehand. 2Self-tapping thread inserts have a maintenance effect on damaged threads. 3Thread repair allows to continue using the same screws. 4Self-tapping thread inserts have strong resistance to vibration so as to prevent loosening. 5Simpler, more convenient and faster than ordinary steel wire thread inserts.