Abstract: The brazed or soldered joint is for the connection of a capillary tube, namely of a very thin, flexible metal tube, with a test point or with an expansion chamber of a temperature regulator operating with an expanding fluid. The brazing or soldering location between the connecting socket of the test point and the capillary tube is surrounded with a sheet-metal sleeve being folded from a sheet-metal strip and embraces the connecting socket, but leaves a slot open. The soldering material in the form of a brazing or soldering paste is placed into a window or into a triangular pocket, is firmly held in this position, thus the brazing or soldering may be carried out in a continuous-heating furnace. The sleeve extends far beyond the free end of the connecting socket and is at a distance from the capillary tube, thus it serves meanwhile as a support against the excessive bending of the capillary tube.