| 摘要 |
<p>The clamping surfaces (9) are structured to form a partially-interlocking connection between themselves (9) and inner surfaces (10) of the fastening-groove (4). The clamping surfaces are serrated or toothed. The teeth act against a direction of rotation, to jam the clamping section (6) into the groove. The surface is knurled. The serrations lie parallel to the axis of rotation. The clamping section is a die-casting. It is non-magnetic, being made especially of stainless steel.</p> |
