the invention relates to a function element comprising a head part with an annular bearing surface and tubular rivet segment that is provided on the side of the bearing surface of the head part and that extends away from said head part . the invention is characterized in that a tubular guide segment is concentrically disposed relative to the tubular rivet segment and radially inside said rivet segment , wherein an annular gap is provided between the guide segment and the rivet segment and the guide segment projects beyond the free end of the rivet segment .