| 摘要 |
A panel fastener includes an internal spring clip held within a groove in the inside wall of the fastener cap, which engages a retainer to hold an extendable fastener at different positions on the retainer. The retainer can have contours and regions of reduced diameter that bear against the clip that establish positions of greater resistance to, or bias toward, movement of the fastener. The panel fastener makes it possible for the capped fastener to stay in different positions between its two end limit positions with reliable stability and without the need for any external sacrificial parts to meet the needs of pick-and-place automation. The fastener can be a screw or a non-threaded component. |
