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.

The guys from the YouTube channel How To Make Everything have been looking at one such sketch, a screw thread-cutting machine. At first glance, it seems a little flawed. Threads are hard to make ...

If the cut bolt threads acceptably, leave it alone. If not, try the bevel to see if that helps. If you’re looking to cut small machine screws, using a hacksaw could be fussy and slow.

LOOK AT THAT. THE BOTTOM IS HELD WITH A WOODEN SCREW DOWN THERE. THREADS IN WOOD. YOU LOOK AT CIDER PRESSES, WINE PRESSES. HERE'S A PLANE THAT USES SCREW ADJUSTMENTS ON A WITCHET. THIS HAS SCREWS ...

Woodworking screws are actually quite the varied microcosm, with a massive number of combinations of heads, drives, threads, points, and materials. It's easy to just pick a screw and decide to ...

are machine screws with an integral shoulder or journal between the head and thread. Although they are not readily available in local hardware stores, shoulder screws are used extensively in ...

where the Pythagorean philosopher Archytas of Tarentum invented the screw thread. The great breakthrough that came with the development of the screw was it could affix objects together, either ...

I've never seen 4-40 thread standoffs (that is the size of the hold down screws for DVI, VGA, serial, etc.), but definitely have seen both 6-32 (aka hard disc screws) and M3 (aka CD-ROM screws ...

The U.S. and Britain are going to standardize screw threads. No great oratory attends this homely step, no military pageantry, yet it may be as important as half a dozen formal treaties.