| 摘要 |
<p>A cap for bolts and screws with heads, and nuts, where the head or nut projects perpendicular from the surface the fastening device it belongs to penetrates, is disclosed. The cap comprises a body (1) and a recess (2) in the bottom surface (3), to be press fitted to the bolt head, screw head or nut. The cap can be used to enhance the appearance and/or security and/or corrosion resistance of the fastening device.</p> |
