| 摘要 |
<p>The shank anchored in a holding material, and a head protruding in line with this, with top protrusions and/or depressions, make up a mushroom-shaped fixing element for insulating panels, or similar. Part of the protrusions and depressions at least, are undercut on at least one side. These can be in the shape of rings (4), or ring segments (5), pref. concentrically arranged, or they can be circular or rectangular in cross-section. Undercutting is pref. at an angle of 5 to 15 degrees. This facilitates favourable adhesion of plastering or rendering.</p> |
