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 ...

These nuts are internally threaded, precision, work-hardened steel with external undercuts on two sides. Used in sheet-metal panels and installed by automatic machinery, they can be attached in open ...

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 ...