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 ...

The degree to which a ball screw performs well in the field is the direct result of the process used to make it. Grinding, rolling, and whirling are the most common ways to thread ball screws. Some ...

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

Self-tapping screws are usually drilled into pre-made holes (pilot holes) in metals, such as zinc, aluminum, and bronze and its alloys, as well as plastics and resin-impregnated plywood. They create ...

A screenshot of the Van Cor screw threads. Sometimes it's the most basic of technologies that stand the test of time. Take the simple screw. It’s a bit of metal with threads spiraling down a shaft, ...