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Five lever door lock.
Union chubb 3g114e 5 lever deadlock bs3621 2007 80mm case polished brass heavy duty deadlock supplied with 3 extra keys free of charge worth over 14 40 4 0 out of 5 stars 2 55 00 55.
5 lever locks are specified by insurance companies and are usually fitted on external entrance doors.
Higher security lever locks such as the five lever usually have notches cut into the levers.
5 lever mortice locks 78 products a 5 lever lock is the most popular to comply with most home insurance requirements.
The chubb detector lock is a variation of the lever lock which was designed to detect and prevent picking attempts.
5 lever mortice deadlock 37 products a 5 lever mortice deadlock works when the key is turned moving the 5 levers into position for the lock opening and is only able to be opened with a key from the outside.
Once shut you can t open the lock again from the outside without the key.
It s common in modern houses as you ll usually find this type of lock on upvc and.
These catch the locking bolt and prevent it from moving if picking is attempted similar to the security pins in a pin tumbler lock.
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.
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The poor security of a 3 lever lock also means it will not be bs3621 approved.
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.
Meaning when it shuts behind you you are unable to open it from the outside without the key.
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.
5 lever locks use 5 levers.
These levers are moved into position when the key is entered and turned in the lock.
