A bolt arrangement for connecting at least two mechanical elements. The arrangement providing a bolt including an outer circumferential peripheral surface extending in a longitudinal direction of the bolt, a sleeve presenting an outer circumferential peripheral surface and an inner circumferential peripheral surface extending in a longitudinal direction of the sleeve between a first and a second axial end of the sleeve. The inner peripheral surface provides a tapering profile in its longitudinal direction. A portion of the outer peripheral surface of the bolt provides a corresponding tapering profile matching the tapering profile of the inner peripheral surface of the sleeve. The sleeve further provides a portion extending radially outwards at one of the first and second axial ends. In addition, a coupling arrangement is disclosed.