Did you ever notice that highly stressed fasteners like rod, main, and head bolts don't use any locking devices? These critical fasteners stay tight by being stretched-they work like clamps. If a ...

They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

Thread-locking compounds made by Loctite, Permatex and other companies all work pretty much the same: they are anaerobic compounds that cure/harden in the absence of oxygen. If you apply ...

The self-locking process consists of a nylon patch permanently sprayed onto the threads of a fastener (upper left) or embedded into the threads as a pellet or strip (upper right). When threads mate, ...

There’s a wide range of factors that have an effect on fasteners and their reusability. Here’s a look at the major ones and what can be done to limit their effects on fasteners. The drive on a ...