Yale Traditional Nightlatch Brass Narrow

• Classic design nightlatch • Lock is immediately engaged when the door is closed • Suitable for use on wooden doors up to 57mm thick • Includes two keys & fittings • Narrow 40mm backset, Standard 60mm backset The Yale Nightlatch is a classic design that has set the standards in convenient door security for over 70 years and is trusted by millions. Although typically used for exterior wooden front doors in conjunction with a mortice deadlock, the Yale nightlatch is commonly used for interior bedroom doors in shared houses with multiple occupants where additional security is required. The internal knob and snib button provides a convenient way to operate the lock from inside the property. The latch bolt is immediately engaged as soon as you close the door and can also be held back temporarily with the snib button. The internal knob is used to operate the lock from the inside and can be deadlocked by the snib button for additional overnight security. The external five pin rim cylinder lock is manufactured to a good specification, is tested for resistance to corrosion and a minimum of 100,000 usage cycles. If upgrading an existing unit you should be able to use the holes that are already on the door. Available in standard (60mm) and narrow (40mm) backsets, and brass, chrome and traditional green finishes.