The M12/M8 thread reducing pin enables an M8 connection thread for the fischer TherMax 12 and 16. After mounting the TherMax 12 or 16, the pre-installed M12 R threaded pin is replaced with the M12/M8 R thread reducing pin. To do this, the threaded pin is unscrewed from the AKK using the 6-point bit, and then the M12/M8 R thread reducing pin is screwed in.