How Locks Work

Pin-tumbler, lever and mortise locks, deadbolts, padlocks and keys.

Key

REPLOCK

Home & business security, made clear — locks and deadbolts, smart locks and keypads, cameras and alarms, and the tools to secure what matters.

Get new guides by emailOccasional emails. No spam. Unsubscribe anytime.

InformationAbout Lock & Safe Ratings Reference Contact Privacy Policy Terms of Service Disclaimer Affiliate Disclosure Cookie Policy

The lock-grade and safe-rating figures throughout this site are drawn directly from the published ANSI/BHMA A156 and UL 72/687 standards — see the ratings reference. Calculators run real math, not AI estimates; guides and articles are written and edited in-house.

How Locks Work

Lock

Pin Tumbler Lock

Deadbolt

Padlock

Combination Lock

Mortise Lock

Key