This story appears in the June 29 print edition of Transport Topics. Old habits are hard to break, but engine parts that are tightened beyond specifications can be easy to break. For many engine ...

What does it mean when the mechanic says he needs to “re-torque” the bolts, after I recently replaced the car’s front suspension? Most car components are secured to the chassis or sub-assemblies using ...

An Introduction to the Design and Behavior of Bolted Joints, John G. Bickford, 1995 Threaded-fastener technology has been around since screws were used at the Hanging Gardens of Babylon in the 7th ...

What's a torque wrench? It's a referee, says Greg Katsis, marketing manager for Sturtevant Richmont, a manufacturer of torque-measurement systems in Franklin Park, Ill. It makes sure that big, burly ...

Automotive experts and industry guides warn that improper wheel fastener torque—whether too loose or too tight—remains a leading cause of wheel damage and dangerous wheel-off incidents. Correct torque ...

An innovation in bolt indicators ends the guessing game for obtaining an optimum bolt preload. There are many applications in which it is crucial that a proper bolt preload should be applied and, ...

It may sound crazy but the reason is because bolts are expensive, especially when you're building more than a million vehicles a year. It may make rebuilding such a beast a bit of a hassle—or ...

In the high-stakes world of aerospace prototyping, a bolted joint is never just a mechanical connection—it's a calculated ...