The Union HD72DNL is a heavy-duty euro profile deadlocking nightlatch for use in commercial or public environments. The product works in a similar manner to a rim nightlatch, however the mortice nightlatch allows for free egress, while still enabling controlled entrance to the building.
One feature of the product is the modular case which allows for substitution for other Union HD lock cases. This means that the use of the door can be changed with minimal alterations done to the door itself. The nightlatch is suitable for use on fire doors and is perfect for areas of high use such as hospitals, schools and other public buildings that need secure entrances but easy exits in the event of a fire.