Tow Coupling with Retaining Plate for Frame Mounting 10108413Tow Coupling with Retaining Plate for Frame Mounting 10108413 Tow coupling with retaining plate for frame mounting made of high strength aluminium with retaining plate for screwing or gluing onto the frames inside the R C model. The release pin is made of spring steel with a thread for screwing on the fork head included in the scope of delivery or a standard ball head. The tow coupling can either be operated with the release pin included in the scope