A lock device comprises a plate element (10) having a face plate (11) and a beam (12) attached to the face plate. The face plate is provided with apertures for at least one bolt (13, 14). A lock housing (21, 22) is mounted to the plate element and includes a lock mechanism (30, 40). At least one lock bolt (13; 14) is mounted to the plate element and is arranged for movement between an extended and a retracted position. When retracted, the bolt is sideways essentially surrounded by the beam, which preferably has a U−shaped cross−section. A driving element (14a; 16) is mechanically connected to the bolt and is arranged to be actuated by the lock mechanism. The bolt including the driving arrangement thereof are thereby protected from damage, particularly if the plate element comprises high−strength material. The integration of front functions in the plate element allows for a modularisation of the lock device and thereby fewer parts for stock−keeping and/or a wider range of possible lock devices.