8764 - 8764 light sprung nightlatch with key lock-back


Bolt deadlocks automatically when door is closed but with special faceplate key for locking bolt into lockcase. Ideal where security is not required whilst building is fully occupied (e.g. office hours). Light spring for use with turn.

Available with either 50mm or 70mm backset.

May be converted by Stockists to operate with snib lock-back.



Product has been successfully type-tested for conformity to BS EN 12209.
Regular audit testing is undertaken.



An internal microswitch can be fitted in any of these locks to enable an alarm or other signal to be activated by use of either the escape function or key and escape function.

ME = Microswitch to signal use of emergency facility or handle.

MK = Microswitch to signal use of key and emergency facility/handle.

Example Ref: 8760 (lock) / 70mm (backset) / LH outward (handing) / 4801 (cylinder) / Var 3 (emergency variation / ME (microswitch)

i.e. 8760 / 70mm / LH outwards / 4801 / var 3 / ME.

Microswitch Details:

Red: Common

Blue: Normally Open

Yellow: Normally Closed


 Single Pole Double Throw. Maximum power rating 2A at 24V DC.