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.

E-Z Lok offers E-Z Coil and thread repair kits designed to quickly repair or reinforce tapped holes in soft metals using durable, corrosion-resistant helical coil inserts made from 18-8 stainless ...