| 摘要 |
To prevent relative turning between elements (1 and 2) which are to be in engagement by threads with each other one of the elements (1) is provided with a recess (5) and the other element (2) with a hole (6). The recess (5) is shaped so that the walls (15) defining the recess at least in one direction are located at a shorter distance from one another than the walls defining the hole (6). When the two elements (1 and 2) have been joined into engagement with each other and into the intended, relative position, the opening (6) is supplied with a locking element which is brought to a displacement into the opening and into an engagement with said walls (15) defining the recess (5) at the same time as the locking element is into engagement with the hole (6), whereby the two elements are locked against relative turning. The locking element can be a part of a tool used when the elements are joined to the intended, relative position, whereby the locking element is cut off from the tool. |
