Sargent & Greenleaf 8550-100 Group 1 Mechanical Safe Lock Black & White Spyproof Dial 3.406
Designed for the most demanding, high-security applications and based on S&G’s original MP Manipulation Proof® locks, our Group 1 and 1R mechanical combination locks provide superior durability and long-lasting performance.
With three combination wheels, our Group 1 combination locks offer over 1 million possible combinations to deter combination hacking attempt.
SECURITY
- Manipulation resistance tested and verified by Underwriters Laboratories to exceed 20 man-hours.
- Patented S&G torque adjuster enhances security by maintaining proper wheel pack tension.
- Integral relock trigger thwarts punch attacks.
RETROFIT
- S&G's Magic Module footprint matches the mounting dimensions of most mechanical and electronic safe locks.
- Used with a variety of attractive dials and rings in several finishes.
Dial and Ring
- SpyProof™ dial
- Black and white finish
