When a bolt or screw breaks off it leaves the hot rodder feeling befuddled and without hope. But take heart—Summit Racing Equipment, Harbor Freight, and Dave Akard of Burbank Speed are here to help ...

When was the last time you overheard someone at the local track or gas station brag about a new set of bolts? You don't remember? It was probably never. Let's face facts: Bolts don't glimmer and shine ...

The R-U-Matic is a completely automated, single-purpose thread-cutting machine that can thread bolts in one pass. Control components are complemented by a QuickPanel Jr. 6-in., color touchscreen ...

Measuring torque when installing threaded fasteners is the best indicator of future joint performance, right? Actually, bolt tension is a better performance indicator, but measuring torque is far ...

Ever been strolling through a hardware store or perhaps an auto parts establishment and wondered of the meaning behind the markings on the hundreds of thousands of bolt heads on the shelf? Whether you ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...