My "Number Plate Mounting Panel" rattles because its not connected to the chassis on one side. According to the Parts Book, the connector is a countersunk M6 x 25mm flat head socket screw. One the one side, the screw is tight and holds in place. On the other side, the screw does not turn, but the plate moves freely in and out of the end of the chassis. Does anyone know how this is fastened inside the chassis? Is there some sort of threaded insert? I don't see any references in the Parts Book. I doubt the chassis tube itself is threaded.
Any photos would be appreciated. Thanks in advance.