The Lockwood Selector V cam is designed for use on a standard 570 oval cylinder in conjunction with a Lockwood Selector 3700 series mortice lock.

• The Lockwood X7 cam locks (but doesn’t unlock) the locking bar of the Selector lock, and retracts the latch bolt after unlocking. This enables for example, a storeroom door to be fitted with lever furniture and still have the door always locked from the outside.