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 ...

A stripped screw can turn a quick fix or small adjustment into a big hassle. It can happen to any screw and can make removing or tightening it almost impossible. You might encounter a stripped screw ...

Screw dislocations play an important role in materials’ mechanical, electrical and optical properties. However, imaging the atomic displacements in screw dislocations remains challenging. Although ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. Round off the sharp edges of a ...

Roy Underhill shows how to use an 1889 foot-driven metal working lathe. Make your own darn metal screws with this 1889 foot-powered lathe! Roy shows how to cut perfect threads, cones and tapers in ...

If you're a wine drinker, you've probably noticed that screw caps are no longer considered the closure just for cheap vino. Increasingly, bottles of very good wines are unscrewed, rather than uncorked ...