Yale Locks 706 Traditional Nightlatch 40mm Backset ENB Finish BoxThe Yale 706 Nightlatch is a traditional style nightlatch with classic styling. The deadlocking snib function enables the latch to be held back or deadlocked internally. The nightlatch is key operated from the outside and has a knob handle for operation from inside. The 706 nightlatch has a 40mm backset, this is the measurement from the edge of the door to the centre of the keyhole. Locks with a 40mm backset are normally used where there is restricted