STUD SYSTEM, EXPANDIBLE PORTION OFF OF A HOLLOW STUD HAVING DIVERSIFIED EXPANSION ZONES AND METHOD OF MOUNITING FACADE FACING FACING SECTION ON LOAD-BEARING WALLS AND SIMULTANEOUSLY MONITORING THIS MOUNTING PROCESS

摘要

The expanding dowel has two expanding zones (6,7) with spreading sections (3,4). The second spreading section (3) is structured so that, on screwing the first spreader section (4) in its expanding zone (6), only the pull force of the threading in the first section (4) draws the spreader (1) into the second expanding zone (7). The second spreading section (3) is profiled with peripheral and preferably equidistant ridges.