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Restricted Keys

Restricted Key Master key systems not to be confused with keyed alike systems, were all locks are keyed under the one key. Master key system is a term used to describe how we manage and control keys, and limit access through individual doors. Prior to electronic access control systems or mechanical digital locks this was the only way to restrict access to certain areas without the expense of an access control system. Master key systems are still used predominately in small to medium sized businesses. Typically a worker may need access through the front gate and to their office door and as such a key can be given to them, which only allows that access. However the master key will allow the manager access to every lock in the building.

Restricted master key systems as the name implies these systems restrict the availability and distribution of key blanks and barrels. There are many providers of restricted key products through locksmithing channels and basically they all have a registered or restricted design pattern on the key or the barrel. The restricted system provider supplies to the locksmith the system under an agreement that is both legally and ethically binding which ensures the integrity of the restricted product. The biggest advantage of this system is the locksmith controls the system. Whenever the client needs additional keys they must order the keys with a signed request. The client nominates a responsible person within their organization to be the designated signatory and a sample of that person’s signature is kept on file to verify each order. In addition all restricted keys are individually stamped with system number, rank and sequential generation, which can be used to track keys and design of the system. This has been the industry standard worldwide for many years and is a very cost effective way to ensure security over locks and keys.