The Keymark lock system was developed by Medeco, the industry leader in key control, to be the ultimate choice lock for the commercial / institutional market.

What distinguishes Keymark from ordinary locks is its Security Leg keyway. This exclusive patented feature gives the key blank its unique shape and provides a higher level of security by protecting against unauthorized key duplication.

The security leg keyway exits the lock cylinder at a unique angle, giving you the confidence that other keys won't operate - or even fit into - these locks.

Keymark also provides unmatched flexibility. Keymark cylinders are designed to retrofit into virtually any existing commercial lock , so hardware replacement is not necessary to upgrade to positive key control. Keymark lock cylinders are available in Best tm style interchangeable cores, plus conventional knob, rim, and mortise lock cylinders, all which can be keyed into the same controlled key system operated by your single master key.