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.

If the existing spout is a screw-on, the nipple is galvanized steel and threaded. It's possible to ... As a precaution, I de-burr the end of the stub-out with a file to make it smooth, then ...

Off course, you can also print the threads directly, screw a bolt into an un-threaded hole, or tap a hole. Following his usual rigorous testing process, [Stefan] from CNC Kitchen investigated ...