Fasteners & HardwareReference — Not a Buildable Spec
Bolt Strength Grades (SAE and Metric)
How to read a bolt head: SAE grades 2, 5 and 8, metric 4.6 to 12.9, and which one belongs on a suspension or an engine.
Status
Pin is a standard automotive bolt-grade chart. Do not put a lower-grade bolt in a critical spot than the part calls for.
Members Only
Sign in free to keep browsing Modern Monticello. Unlocks are one-time payments — no subscription.
632 entries inside. See what's inside. Or try one free: Wall & Roof Systems.
Sign In — Free