Jim,my advice is buy them a bit too long, Do a test run, and cut them to suit. The clearance in the hole can use up material. Most U.C. rivets are 3/8", but the U.Cs use 5/16" rivets to join the track guards to the angle iron (the angle iron that meets the upper hull side plates.
Try that web site I mentioned. It is rivets that they do. Freight from there to here is expensive, but for you guys it's cheap! (relatively speaking)
Rivets tend to add up, weight wise.
Colin Jones gave me about 30+ kilos of 3/8" rivets, when Chris and I stayed at their home a couple of years ago. I carted them from Adelaide to Kalgoorlie on the train, and again when we came home, down to Perth on the train, and then on the plane to New Zealand. They had to be spread around in the luggage. The bag limit on Air N.Z. is 24 kilos. 30 kilos would pull the handles off of a lot of bags!
Thank you again Colin.
