British Standard BS3621 nightlatch recommended by insurance companies and the 'secured by design' police initiative. Key operated from the outsideand both key and lever handle operated from the inside with internal lockable handle. Latchbolt automatically deadlocks on closing the doorand snib enables the latch to be held back latch. Also features X5 rim cylinder, 20mm bolt and is 40mm backset. Available in brass, chrome and metallic grey finishes.
