Feature: 1. Widely used in automobiles, rail car, military supplies, ships, home appliances, construction machinery, communication equipment, electronic products, engineering plastics, metal die castings, etc. 2. The self-tapping screw sleeve has self-tapping ability, and the base material does not need to be tapped beforehand. 3. Self-tapping screws have a maintenance effect on damaged threads. 4. Thread repair can continue to use the same screws. 5. Self-tapping screw sleeve is strong against vibration and prevents loosening. 6. Installation is simpler, more convenient and . Specification: Item Type: Thread Repair Kit Screw Material: Carbon steel plated zinc Screw Sleeve Specification: M8 x 1.25 Quantity: 12pcs Package List: 1 x Twisted Drill 1 x Installation Tool 10 x Thread Inserts