6780 - 6780 nightlatch with key lock-back, non-deadlocking


Locks for entrance doors where automatic locking is required when door is closed.

Available with single cylinder and thumbturn, or alternatively with double cylinders or single cylinder only.

Supplied as standard with striking plate. Cylinder and accessories bolt through lockcase for added strength.

Key can only be removed in locked (or locked-back) position. Bolts reversible without opening lockcase.

For finishes and dimensions see Lockcases Information appendix.

When ordering please specify hand and door thickness.


No automatic deadlocking. Key for locking bolt into lockcase.

Available with either 50mm or 70mm backset.

May be converted by Stockist to operate with either snib or no lock-back.


Key retracts latchbolt.

Turn  retracts latchbolt.

Latchbolt held back by key in faceplate.


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