A bolt is a type of threaded hardware fastener that is used to position ... inserted into pretapped holes or can perforate a material and create their own internal threads. Screws are fastened by ...

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.

A screw is a type of hardware fastener that attributes its mechanical capabilities to the helical groove that extends around the circumference of the device's shank. These threads provide the friction ...