| 摘要 |
<p>The present invention relates to an arrangement (1) for a nut (2), which exhibits an internal (3) thread (4) and which has arranged on its outside (5) radially (6) projecting raised parts (7) in the form of gripping devices so arranged as to be capable of actuation to cause rotation of the nut (2). The aforementioned gripping devices are formed by a number of axially (9) extending grooves (7-75) distributed around the periphery of the nut (2), each of which exhibits pairs of parallel and on the whole radially (6) extending contact surfaces (10, 11).</p> |
