| 摘要 |
<p>The present invention relates to a fastening device, primarily for affixing a preferably expansive thin-walled element (3) to a preferably likewise thin-walled component (4), comprising at least one screw (1) with a shank (10) and a head (11) and at least one counterstay (2) with a hole (20) which cooperates with the threads (14) on the screw, whereby said counterstay (2) is easily attachable to said preferably thin-walled component (4), and in which said shank (10) presents a preferably threadless portion (12) whose outer diameter at least less than the outer diameter of the adjacent lower region (14) of the thread and the smallest diametrical clearance of said hole (20). The invention is primarily directed to eliminating the known problem of elements and components being damaged during assembly.</p> |
