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.
It can be very useful to be able to cut a screw so it’s shorter without damaging the thread. Whether you need to know how to ...
Thread gages are dimensional instruments for measuring and/or verifying thread size, pitch or other parameters ... tri-roll comparator, measuring wire, screw thread insert (STI), and thread gaging ...