Jam Handy! Provides a detailed overview of the process of cutting screw threads on a lathe. It explains the different types of screw threads, the importance of precision in machining, and outlines the ...

Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting. The thread-forming screw displaced material around the pilot hole so ...

A new machine promises to thread bolts in one pass. Recently unveiled by Rebuilders Unlimited Machine Co. Inc. (RUMC), Waynesboro, Pa., the R-UMatic Thread Cutting Machine takes advantage of GE ...

Historically, the threading of holes has been a fairly straightforward operation, usually performed close to the end of a part’s machining. Once the holes had been drilled, thread taps of the ...

They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...