1760 double nightlatch without lock-back - 1760 double nightlatch without lock-back

Application

Locks for classroom doors, offices, industrial premises, apartments, etc.

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 door thickness.

Specification

Upper bolt deadlocks automatically when door is closed. No locking of upper bolt into lockcase. Lower bolt operated by lever handle. Available with either 50mm or 70mm backset.

Exterior	[PROD3]	Interior
Upper latchbolt automatically deadlocked. Key retracts both latchbolts. Lever handle retracts lower latchbolt.		Turn retracts both latchbolts. Lever handle retracts lower latchbolt. No lock-back.

 

Finish

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

 

Standards

 Intumescent kit ASSA-MODULAR-IK suitable for 30 and 60 minute timber fire doors are available to order as a separate item