Trusted worldwide to protect safes, vaults, and equipment. 

Safe, vault, and equipment security starts with a trustworthy lock. Sargent and Greenleaf mechanical locks protect your assets with quality materials, design, and workmanship. Our locks are easy to install, easy to operate, and proven resistant to tampering and attack. 

Model 2937

High-Security Combination Lock

Model 6630, 6631, 6651

Group 2M Mechanical Safe Locks

Model 6730, 6731, 6741

Group 2 Mechanical Safe Lock

8500 Series

Group 1 and 1R Mechanical Combination Locks

6800 Series

High-Security Key Locks

Model 951/951C

High-Security Padlock

Environmental Padlock

Model 0881/0883

Model SM181 & SM183

Sliding Deadbolt Locks

The Brute™

Door Deadlatch

Model 8077

High-Security Combination Padlock

Model 6280 & Model 6370

Time Locks

Higher standards

We build our mechanical locks to high internal standards, and design many of our products to specific security certifications. 

Learn more about our certifications.

Customer-focused support

We’re working hard to make our customer service even more responsive. No matter where you are, Sargent and Greenleaf and our growing international network of distributor partners can answer questions, help you troubleshoot, or resolve issues with your mechanical locks. 

Get the support you need.