| 摘要 |
<p>A set screw (500) having a novel cup-point for engagement with a shaft or rod. The cup-point has knurling (516) on a portion of its outer circumferential surface and is provided with a smooth frustoconical surface portion adjacent the knurling such that, in use, the smooth surface portion (514) of the cup-point engages the surface of the rod or shaft before the knurling.</p> |
