The Yale PM552 is a 5 Lever mortice lock and offers a high level of security, it is suitable for use on external wooden doors when used with a maximum security British Standard nightlatch.
High security 5 Lever Mortice Deadlock used as a matter of course by the national house builders. Kitemarked to British Standard 3621:2017. Supplied with 2 keys.
This Euro Profile Deadlocking Mortice Nightlatch (case only) is part of the proven high quality HD72 range of lockcases from Union. It is weather & corrosion resistant and suitable for bolt-through fi...