| 摘要 |
<p>Fastening of a corrugated sheet in a roof construction or wall construction A corrugated sheet in a roof construction or wall construction is fastened to an under- lying support structureby a screw (1) extending through the sheet and extending into the support structure, the screw (1) having a head (2), a washer (3), and a threading (5), the washer (3) comprising an upper metallic cap (8) and an underlying sealant (4).</p> |
