Identifying Bolt Grades - What You Need to Look For
If you've ever stood in the hardware store aisle staring at a bin of fasteners wondering which one won't snap under pressure, identifying bolt grades is a skill you'll want to pick up pretty quickly. It might seem like those little lines and numbers stamped onto the head of a bolt are just random decorations, but they're actually a shorthand code for how much stress that piece of metal can take before it fails. Honestly, picking the wrong one isn't just a nuisance; in the wrong situation—like a car's suspension or a deck ledger board—it can be a genuine safety hazard. ...