The Yale 77 series traditional nightlatches are the Original Yale Lock with classic styling. The deadlocking snib function enables the latch to be held back or deadlocked internally. The nightlatch is key operation from the outside and has a knob handle for operation from inside. The 77 series nightlatches have a 60 mm backset--this is the measurement from the edge of the door to the centre of the keyhole. This Yale YAL77ENBSC has a hardened case finished in electro nickel brass and the cylinder is finished in polished brass. It comes supplied with two keys and has a standard security rating. It is not recommended for glass panelled doors, unless used in conjunction with a 5 lever mortice lock
At Yale, they have been taking care of people and their favourite things all over the world for over 200 years. Like your great-great-great grandparents before you, you can be secure in the knowledge that fitting Yale alarms or Yale locks to your doors and windows means complete peace of mind and full protection for your family and property. Yale is one of the oldest international brands in the world and probably the best-known name in the locking industry. The Yale history captures major innovations that have marked the evolution not just of Yale, but of the entire locking industry.