Features Easy to Install: The self-tapping screw sleeve has self-tapping capability, and the base material does not need to be tapped in advance. Installation is simpler, more convenient and faster. Practical: Self-tapping screws have a maintenance effect on damaged threads. This kit can address most of your restoration needs. Thread repairs can continue to use the same screws. Sturdy: The self-tapping screw sleeve has strong vibration resistance and prevents loosening. The steel wire screw group is placed in the screw hole of the workpiece such as aluminum alloy to form a standard internal thread with high strength, wear resistance and high precision. Packaging: All accessories are integrated in one box, which is convenient to transport and carry. You can easily find the accessories you need when you need them. Widely Used: Widely used in automobiles, rail cars, military supplies, ships, home appliances, construction machinery, communication equipment, electronic products, engineering plastics, metal die castings, etc. 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 Drill1 x Installation Tool10 x Thread Inserts Package List 1 x Twisted Drill 1 x Installation Tool 10 x Thread Inserts