40mm Polished Brass ERA double-locking nightlatches complete with 5 pin Polished Brass rim cylinder and 3 keys. Nightlatch automatically deadlock on closing, due to the snib, preventing the main latch bolt being slipped open from outside. Key operated from outside and lever operated inside. The internal handle can be deadlocked by an anti-clockwise turn of the key from the inside securing the lock against forced entry. The latch bolt can be held back by withdrawing the latch and depressing the button
