The Union 3G110 Deadlock is a 5 lever lock with a silver powder coated case and a brass deadbolt with steel rollers. It is force resistant, anti drill, anti-pick and anti-saw thus making it suitable for high security uses. This lock is EN1634-1 assessed for use on 60 minute timber fire doors. Supplied with one plain escutcheon and one escutcheon with a cover plate, finished to match the faceplate/strike.