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.

View post: Craftsman's 'Quality' 71-Piece Craftsman Tool Set Is on Sale for $50, and It's 'Perfect for Home Mechanics' When you’re working on engines, machinery, or older equipment, stripped threads ...