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 ...

Thread the nut onto the bolt, hit it with 37 “ugga-duggas” and it’s all done, right? *insert buzzer here* Whoops! That’s a fail, and now you have a broken bolt. If you have been turning wrenches for a ...

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 ...

Part 1: A-ating Look at the Bolts and Studs That Hold Your Engine Together—We'd Really Be Screwed Without Them! Bolts, nuts, and washers: They're what keeps your engine, drivetrain, chassis—heck, the ...

Key design features include retention barbs that give the fastener easier insertion into round holes and help prevent inserts from spinning when installed. Flange tabs on both ends orient inserts in ...

It's tempting to reuse cylinder head bolts, especially if they pass the eye test. But there are some kinds of bolts you ...