| 摘要 |
<p>A self-attaching nut having an annular pilot (24), an annular flange (30) surrounding the pilot and an annular groove (34) in the bearing surface surrounding the pilot, wherein the bottom wall (36) of the groove has inclined rectangular protuberances (42) and the outer wall (40) of the groove has radial channel-shaped grooves (48) spaced between the radial protuberances. During installation, panel metal is driven against the inclined radial protuberances, driving panel metal under the inclined outer wall of the roove and into the radial grooves in the flange.</p> |
