Description
The Chubb 3U114E 5 lever deadlock is most commonly used as additional security on a front door, which is fitted with a standard nightlatch. It has been tested to British Standard 3621, is Kitemarked and is a requirement of most insurance companies.
5 Lever Mechanism Anti-Pick
Mortice locks are available with a 2, 3 or 5 lever mechanism. The higher the number of "levers" the more difficult the lock is to "pick". For front, side and back doors it is recommended that British Standard 5 lever locks are fitted.
Various Mortice Sizes
Mortice locks are available in a range of different case sizes. The case size is the measurement between the faceplate and the back of the lock as measured in millimetres (typically 54mm, 67mm or 80mm). The case size measurement therefore denotes the depth of the mortice slot into the door.