With classic styling, the Yale 77 Traditional Nightlatch brings the look and feel of the Original Yale Lock to your door. Key operated from the outside and finished with a knob handle on the inside, it offers straightforward day-to-day access while keeping operation clear and familiar. A deadlocking snib function allows the latch to be held back when needed, or deadlocked internally for added control from inside the home. Designed with a 60mm backset, the lock is set to position the keyhole 60mm from the edge of the door. Supplied with a 1109 external cylinder. Key features Classic, traditional styling Deadlocking snib function to hold back the latch or deadlock internally Key operated from the outside Knob handle operation from the inside 60mm backset Supplied with 1109 external cylinder Please note: Colours shown are as accurate as possible, though may vary slightly depending on your screen settings.