POLISHED CHROME FRONT DOOR LOCK NIGHTLATCH Security Deadlock Bolt Cylinder Key
Backset (Distance From The Edge Of The Door To The Centre Of The Keyhole) : 60mm (Standard)Single Locking Night Latch. Lock Catch Body : 30mm x 63mm x 47mmDouble Locking Night Latch. The Lock Snib Also Can Be Used To Hold The Lock Open.