Abstract: A fastening device for a deflection fitting of a safety belt arrangement is disclosed for a vehicle with a body which is open at the top. The fastening device includes a hollow tube which extends through a horizontal vehicle partition and, on the one side, is welded in the area of this partition to a transverse member and, on the other side, is welded to a vehicle side member below the partition. The fastening device may be manufactured at low cost and may be inserted in the vehicle body, requires little space and causes an additional stiffening of the rear area of the vehicle body. In a particularly advantageous manner, the free cross-section of the hollow tube is suitable for receiving a rollover protection device which may consist either of a fixedly screwed-in system or of a system which can be selectively moved out. The hollow tube can also receive wind screen support devices and lifting or swivelling mechanisms.