Abstract: A fastening device for the fastening of a plurality of furniture fittings to a furniture part includes an anchoring rail which is to be fastened to a side wall of a piece of furniture and has lateral openings for receiving fastening pins of the fastening device has a locking rail (10, 19) which is complementary to the and is displaceable relative to the anchoring rail while advantageously being guided therein and which has edge portions which latch in behind projections of the fastening pins in a locked position. The locking rail is movable by way of an eccentric mounted in the anchoring rail rail.