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 ...

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 ...

Wood fastening is at the heart of all woodworking and construction work. Much of this functionality is due to the design of ...