A bone anchoring device comprises a receiving part (1) for receiving a rod, the receiving part (1) having a first bore (5) coaxial with a longitudinal axis (4) and a second bore (6), an anchoring element (13) having a first end (14) for insertion into the bone and a second end (15) positionable within a second bore (6), the second end (15) having a spherically shaped surface portion (36). The bone anchoring device further has a locking device (33) provided to the second bore (6) of the receiving part (1), the locking device (33) protruding from an inner wall (7) of the second bore (6) and engaging with a recessed surface portion (35) of the second end (15) of the anchoring element (13), such that the anchoring element (13) is pivotable relative to the receiving part (1) around a single axis (46) of rotation. The locking device (33) may comprise pins inserted into through holes (34) formed in the receiving part, which engage with the recessed surface portion (35a-d) of the second end (15).
