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 ...

Translating rotary motion to linear motion is a basic part of mechatronic design. Take a look at the nearest 3D-printer or CNC router — at least the Cartesian variety — and you’ll see some mechanism ...

There are all sorts of tricks you can use when doing wood joinery, but screws are easily the most common. Here's some great ...

Attaching metal pieces to one another with a screw is relatively straightforward. But using threaded fasteners on plastics, which are lightweight, low-density materials compared to metals, can be ...