Device For Coupling Two Components

Device for coupling two components (1, 2), in particular two rods or bars, with two coupling parts (3), each arrangeable at the ends of the components (1, 2) that are to be coupled, and a connecting element (4) that can be engaged with the coupling parts (3), with the connecting element (4) having at least two retaining elements (5) that can be arranged on each other to encompass the coupling parts (3) and that can be fixed in place by means of at least a clamping device (6), with the retaining elements (5) having at its opposite ends a surface (11) suitable to brace with the clamping device (6) and with the surface (11) having an angular or spherical or at least partially conical shape, characterized by the fact that the clamping device (6) has two fixation elements (12) each of which can be engaged with the ends of the retaining elements (5) and that the fixation elements (12) each have an interior thread to be screwed onto threads (7) formed at the ends of the components (1, 2) and an angular or spherical or conical interior surface to engage with one of the surfaces (11).