Mechanical combination locks

Combination safe locks are still used in select applications on modern safes. The reliable, consistent opeation even is tougher environmental conditions make them suitable for situations where electronic locks may not be, yet keyless operation is still required.
Mechanical combination locks, or dial combination locks, are a time tested and reliable form of keyless security on safes, providing only a reputable and reliable brand and model is used. Good quality combination locks will have parts engineered to ensure accuracy and in turn security, by making it difficult to manipulate the lock to open. Combination dial safe locks are available in 3 wheel or 4 wheel configurations. The number of wheels directly relates to the amount of numbers in the code used to unlock the safe. A 3 wheel, or 3 number combination lock will have 1 million possible number combinations, with 800,000 useable combinations. A 4 wheel combination lock will have 100 million possible number combinations with 80 million useable combinations. Sargent and Greenleaf (S&G) and LaGard are the 2 most prominent brands of mechanical combination safe locks, both of whom have been producing safe locks for decades. Safe Central also use the more recent ‘Big Red Series’ combination safe locks which are very well made and offer the same features and functions as the LaGard and S&G equivalents.

Safe lock brands

LaGard 3 wheel combination lock

3 number combination
Multiple dial and ring options
Number range from 1-99
Anti-manipulation options

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LaGard combination locks

LaGard have been producing quality safe locks for decades and the Group 2 mechanical combination safe lock has been around since the beginning with various improvements along the way. The lock is designed with precision engineered components to ensure accuracy, reliability and security at all times and utilizes the internationally recognized footprint to ensure adaptability to all types of safes.
-800,000 different usable combinations
-Precision components ensuring reliability and consistency
-Internal anti-tamper relocking function
-Universal mounting template
-Multiple dial options

S&G 3 wheel combination lock

US-Made 3 number combination lock
Multiple dial and ring options
Number range from 1-99
Anti-manipulation options

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No batteries

Mechanical combination locks are easier on maintenance as they do not require batteries to operate.

Anti-manipulation

Is a feature that some combination locks have in their internal component design to resist opening by sound or feel.

LaGard 4 wheel combination lock

4 number combination
Multiple dial and ring options
Number range from 1-99
Anti-manipulation options

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Sargeant & Greenleaf

Sargent and Greenleaf have been producing combination dial safe locks since the 1850s and have long been a market leader in this area. The products have constantly evolved over the years with advancements in technology, improving accuracy and materials used, ensuring the highest quality locking devices every time.
-Up to 80 million usable combinations
-Various dial design for different applications
-Anti-tamper relocking device
-Universal mounting template
-Highest security accuracy and tolerances

S&G 4 wheel combination lock

US-Made 4 number combination lock
Multiple dial and ring options
Number range from 1-99
Anti-manipulation options

View combination lock product page