What do the small lines or numbers stamped on a bolt actually mean, and why do they matter? In an article featured on HelloNation, Tanner Chaffin of Action Fasteners & Supply in Spokane, Washington, ...

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 ...

I was wondering whether a mechanical engineer type here could provide a reference for the proper grade of bolt to screw into a cast iron engine block. My theory, which appears to be backed by ...