Function: 1. The repair nut is easy to use, and the small groove design can easily fix and tighten the screw. 2. The nut is made of high quality stainless steel, with high hardness and long service life. 3. A set of 10 repair nuts can meet your various lighting usage and replacement needs. 4. The inlaid nut has excellent workmanship, clear thread and strong practicability. 5. Used in the manufacturing fields of aviation, automobiles, computers, lamps, molds, mechanical appliances, radiators, etc. : threadrepair Case: For example, M8 thread is very slippery and I want to continue using M8 thread after recovery. Use this method to extend M8 thread to M10 thread, then use M8 -M10-12mm length reducer to convert back to M8. Since this smaller diameter material is stainless steel, the M8 thread becomes stronger. in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.