| 摘要 |
The assembly has fixing elements (101) and another fixing element, each comprising a head, smooth drum and a machined end portion aligned with each other. A front face (106) of the end portion has a cylindrical cavity (107) extending parallel to an axis (102) until bottom (108). The elements have different maximal tightening capacities corresponding to length of the drum according to the axis between the head and a boundary between the drum and the portion, where the group is configured such that a distance along the axis between the head and the boundary is identical for all the elements. Independent claims are also included for the following: (1) an assembly for installing a fixing device (2) a method for checking choice of length of fixing element.. |
