[Lynn Eades]

Thank you all. How do I put this?
Broad statement: (because the pitch and pin sizes are universal)

"Basically all U.C. track is the same". However:

There are two areas where it varies:

1. The two sizes of track in relation to the width between the "horns" or "tongues" (wide or narrow bogie wheels)

2. The pin and how it is located. The lead plug Australian track has a "stop" at the inner end (see earlier post) this stops the pin moving on through. Once fitted in the track links, a lead plug (like a .38" wad cutter) is fitted and punched. This spreads into a groove in the outer hole, which contains the pin in service.
Obviously this pin is shorter (than a pin with a head and a split pin hole)

My question about the Swiss pin is "What form do they take?"
Are they the same as the Aust. lead plug pin? (a straight, plain pin with no head)

With Australian track, a small drilling exercise to remove the "stop" would allow the use of a Canadian or British track joining pin.
To put it another way: A Canadian (or British) link is 9.5" (241mm) wide (where the pin goes through) Is Swiss track narrower?