Part of that is probably because we’ve gotten so good at making them that they’re seen as cheap commodities, but the physics and engineering behind the screw thread is interesting stuff.

This effectively pulls the bolt up through the jam nut. The threads of the bolt are then in contact with the top flanks of the threads within the jam nut, while simultaneously contacting the upper ...

The Stochastic Box Thread Checker is a simple device for verifying threads on nuts and bolts. It’s a 3/16-inch thick piece of SUS304 steel with threaded openings and pillars of various sizes.