I recently bought some K-line ttax cars and here is a picture of the typical truck assembly. Although I have all the parts needed, the screw holding the trucks together with the two cars is obviously a deal breaker. It seemed like it should be a commercial part if I wanted a spare since I take these apart for storage when not on the track.
When I started looking for something like this, everything that comes up in searches involves the stand off parts for printed circuit boards. Does anyone know the official name for this "shoulder screw" or whatever it is? Thanks for ideas.