Secure 6 Restricted Key Systems
August 7, 2025
A deadlatch is a lock that operates by pulling the door shut. The lock can then be opened by a key externally, typically featuring a knob or thumbturn on the inside
A deadbolt has a bolt that is thrown by a key externally, and a key/thumbturn internally.
They are both classed as deadlocks as they are lockable from both sides of the door and require a key to open the door , single cylinder deadbolts being the exception as a thumbturn will manually throw the bolt from the inside.
This functionality is the opposite of a vestibule lock, where seeking egress (exiting) is available at all times.
Choosing between a deadlatch or a deadbolt depends on a matter of convenience versus security. With a deadbolt you must have your keys with you to lock the door, whilst a deadlatch involves pulling the door shut. However, it is impossible to lock yourself out of your house with a deadbolt where as pulling a door shut without consdering your keys is the number one cause of lockouts
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We supply and install a wide range of high-quality security hardware to suit every home or business need. From patio bolts and Gainsborough Trilocks to nightlatches, deadlocks, digital locks, and everything in between—including door closers, sliding door locks, and mechanical keyless systems—we have your property covered. Whether you’re upgrading your front door or securing an entire premises, we’ll recommend the right products and install them with expert care.
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