Special version on request e.g.: Composite latch (noise reduction); hazardous side = hinge side; forend 20/24 x 280 x 3; forend 20/24 x 280 x 6 Function from the inside: The door has a lever handle or panic door fitting on the inside. When actuated, the latch and the pre-locked bolt are retracted. The door can be opened. Function from the outside: The door has a lever handle on the outside. The latch can be retracted using the lever handle. The door is not yet secured by pulling it to from the outside. To secure the door, it is necessary to lock it with the key. To open the door, the key must be used to unlock the door and the latch retracted by actuating the lever handle.