Soft iron track pins
Marc's comment about soft track pins seems to hold true. I know someone who has a Bombardier snowmobile (coincidentally almost exactly like the military one in another thread here) who uses soft iron bolts as the pins through the piano hinges in the the track belts. Just the cheap hardware store type used in woodworking projects, the bolt shank being long enough to pass through the hinge. The rationale is the bolts wear more quickly than the harder-to-replace hinge part, and are commonly available. As far as I am aware the Bombardier is used regularly as as work vehicle carrying passengers every winter so there must be some merit to it.
Steve.
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