Description This is a deadlocking nightlatch available in various finishes, designed for 40 mm door entrances. It provides enhanced security and ease of use for residential and commercial doors. Technical Specifications Body finish options: Gray (dmg) or Brass (Pb) Backset (latch length): 16 mm Overall height: 68 mm Width: 60 mm Maximum door thickness: 60 mm Type: Deadlocking nightlatch Compatibility and Accessories Designed for standard 40 mm door preparations Compatible with various door types that accommodate a 40 mm latch Installation Easy to install on compatible doors with standard 40 mm backset Requires basic tools for fitting Usage Provides secure locking with deadlocking feature for added safety Suitable for residential and commercial doors requiring reliable security Other Information Available in different finishes to match door hardware