We have all done it, overtightened a bolt and blown out the threads. When a bolt starts to tighten up and then go suddenly loose, you know that the threads are toast and now you have a problem.

Promotion Helicoil M10x1.25 M14 X 1.25 – Helicoil Style Insert Set, 15 Pieces, For Damaged 14mm Threads Thread Repair Kit ...

Everybody who has worked on a car knows the pain and suffering of stripping or damaging threads. It can and will happen to anybody on a wrenching journey, and it often feels like a firm dead-end for ...