| 摘要 |
<p>The bolt (1) for anchoring in a sheet (5) by jointing and pressing has a stem (2) with a head (3) of larger cross section at one end . A flange (4) is formed at the transition from bolt to head. The flange has an undercut (4.1). The flange has a edging on the region (4.2) between the undercut and the bolt stem, of greater cross section than that of the bolt in the undercut region.</p> |
