A clamping assembly for a strut element. The clamping assembly connects one end of the substantially tubular strut to a threaded bolt. The clamping assembly comprises a threaded sleeve that is arranged in the tubular strut in a radial annular gap between the threaded bolt and the inside cross-section of the strut, in a conical internal thread of the strut. The threaded sleeve has a conical external thread and an internal thread that receives the threaded bolt. The end of the sleeve, that is received by the strut, is radially elastic.