Understanding Markings and Grades on Nuts and Bolts

Understanding nut and bolt grades can help you choose the right fastener for your project and avoid costly damage. Here’s a guide to help you out.

Understanding Fastener Grades & Materials

Fastener Marking Requirements - Portland Bolt

How do I determine bolt grades?

Screws and Fasteners to Use for Your Deck

What Do the Markings on Nuts and Bolts Mean? - Nord-Lock Group

Marsh Fasteners on LinkedIn: 5 Types of Fasteners You Need to Have

Aircraft Hardware, by Ron Alexander

Common Head Markings

Nut/Bolt/Stud Classifications