Each one operates only one lock or one group of keyed alike locks.
Door hardware master key system.
The less powerful keys at the bottom are called change keys.
Change key also referred to as a sub master key this key will open only one lock.
In a master key system senior staff can have one key that operated every lock in the company.
Since the master keys all have their own shear line fewer master pins are used increasing cylinder security.
In master ring they can.
The more powerful key at the top is called the master key.
Master lock offers a variety of keying service options for door hardware products for you to tailor your door locks exactly how you need them.
This frees thousands of combinations for use anywhere within a master ring system.
These technologies enhance our door hardware products and increase security while adding convenience for the user.
They carry one key and can access everything.
The change key s corresponding lock can also be opened by the master key.
This security enhancement reduces the chances of cylinders being manipulated by stray keys.
About master lock door hardware innovation great technologies master lock strives to provide products and solutions using the latest technology and innovation like nightwatch nighttime security and the electronic keypad deadbolt.
Then moving down in seniority department heads can have one key that works every door in just their department.