12PCS M3 X 0.5 Thread Repair Kit Self Tapping Thread Inserts Tool Set

Widely used in automobiles, rail car, military supplies, ships, home appliances, construction machinery, communication equipment, electronic products, engineering plastics, metal die castings, etc.

The self-tapping screw sleeve has self-tapping ability, and the base material does not need to be tapped beforehand.

Self-tapping screws have a maintenance effect on damaged threads.

Thread repair can continue to use the same screws.

Self-tapping screw sleeve is strong against vibration and prevents loosening.

Installation is simpler, more convenient and faster.