5 lever locks use 5 levers.
Five lever door lock.
5 lever mortice locks 78 products a 5 lever lock is the most popular to comply with most home insurance requirements.
Check prices for 5 lever mortice deadlocks conforming to bs 3621 at b q key operated multi point locking system.
Higher security lever locks such as the five lever usually have notches cut into the levers.
5 lever locks are specified by insurance companies and are usually fitted on external entrance doors.
A multi point locking system bolts the door into the frame and locks at multiple points at the turn of a key giving a high level of security.
The chubb detector lock is a variation of the lever lock which was designed to detect and prevent picking attempts.
It s common in modern houses as you ll usually find this type of lock on upvc and.
Made up of 5 levers which allow the release of the locked bolt when they are lifted to a certain height making it difficult for intruders to pick their way through.
The poor security of a 3 lever lock also means it will not be bs3621 approved.
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A 5 lever mortice deadlock is commonly fitted to wooden doors and is locked from both the inside and outside with a key they are fitted within the material of the door rather than on the surface.
These levers are moved into position when the key is entered and turned in the lock.
Meaning when it shuts behind you you are unable to open it from the outside without the key.
From the different types of door locking mechanisms the main difference between the 5 lever lock and the 3 lever lock is that the latter has fewer levers which make it less secure as there is a higher risk of key duplication.
Once shut you can t open the lock again from the outside without the key.
These catch the locking bolt and prevent it from moving if picking is attempted similar to the security pins in a pin tumbler lock.
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