| 摘要 |
<p>The present invention provides the driving fit rivet made of aluminum, whereof, when driving in the rivet to caulk and joint without making a prepared hole on aluminum plates, no crack, no buckling, no seizure, and the like are caused, it is possible to caulk and joint aluminum plates with high operation efficiency and certainly, and it is superior in recycling, additionally it is possible to lighten products. The rivet is made of JIS (Japanese Industrial Standard) 6000 series aluminum alloy, and has a head and a shank, wherein surface hardness of said shank is Hv 135 or more.</p> |
