The term high security has evolved to encompass manipulation resistant lock mechanism(s) and key control, usually patented. There are a number of different types of high security lock mechanisms. Some incorporate multiple shear lines designed to prevent standard picking/manipulation instruments from...
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For servicing Signature lock cylinders, SARGENT offers the Signature Keying Kit, part number 437S. This kit contains top, master, bottom pins, and springs. There are also replacement blocking bars and blocking bar springs. In addition, there are a number of servicing tools including a depth gauge and the field service tool.
For theft and vandal resistant applications, the SARGENT Signature Series lock cylinders are available as UL437 High Security mortise and rim cylinders.
SARGENT Signature lock cylinders offer varying levels of key control, from locksmith wholesaler controlled to factory controlled. Contact the factory for more information.
Lock manufacturers are depended upon to control the issuance of key stock.
High security is a broad term, while key control is a level of security.