Large buildings, industrial installations, and infrastructure projects rely on more than concrete, steel, and timber. Beneath the visible components of bridges, commercial buildings, and mechanical ...

An angle grinder is the best tool to use for trimming down exposed bolt ends. Here’s how to do it. To do this, you’ll need a bench vise and an angle grinder with a metal cut-off wheel. Use a Sharpie ...

One of the most critical factors in determining the reliability of a threaded-fastener joint is the force the tightened fastener exerts on an assembly, which is known as preload. And preload depends ...

Split heads and head bursts on threaded metal fasteners are classified as “surface discontinuities.” As such, they fall under the jurisdiction of quality standards such as ASTM F788/788M and SAE J1061 ...

Few things disturb us more than the bewilderment of a broken bolt or seized pipe plug in a casting. You’re at a loss for how to get the darned thing out. This is when you have to slow down and come up ...

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 ...