| 摘要 |
<p>The device has a housing with a pion in an extension of threaded holes, where the device is made of thermo-plastic material. A screw is passed through parts (10B, 11B) e.g. sheets, and maintained in the threaded hole. The pion cooperates with an opening arranged in one of the parts. A portion comprises a wall that is movable between an integration position and a releasing position. The wall forms an angle with a central part in the releasing position, where the angle is in a ranges of 20 degrees to 180 degrees.</p> |
