776 cylinder rim nightlatch - 776 cylinder rim nightlatch Application Cylinder Rim Nightlatch with automatic deadlocking as the door closes. Simple lock-back facility by depressing latchbolt into lockcase. Brass latchbolt released by turning thumbturn. Specification Exterior[PROD3]InteriorKey retracts latchbolt.Latchbolt automatically deadlocked.Thumbturn retracts latchbolt. Finish Standards Downloads 776 cylinder rim nightlatch - 776 cylinder rim nightlatch (.pdf, 80 kB) Close 777 cylinder rim deadlock - 777 cylinder rim deadlockRim Night Latch and Rim Deadlock for doors which cannot b…