| 摘要 |
<p>The fixing comprises a long threaded connecting element (8) whose end close to the panel is connected by means of a stop engaging a complementary surface in the lower edge of an opening in the panel and a cylindrical locking head (13) and nut (14). The fixing procedure comprises making a conical section opening in the first side of the panel and engaging an annular open collar (17A) in the opening. The second plate side is fixed on the first and then the annular element constituted by a deformable open collar. The opening edges are brought together during radial deformation of the collar.</p> |
