I have rounded off the hex on the little &8%466& bolt that holds my split rim together. It is at the point where a vise grip is no longer grabbing.
I did not see it in the MAC's catalog.
I may have to make my own.
Look in Langs or Snyders.
Snyders has the rim clamp with two rivets but not the bolt. Page T-22
Is it this screw you need?
That looks like it will work, it is not a hex head but should work anyhow.
Alan, I believe the hex head is a replacement anyway. In a pinch, any bolt of the proper thread, short enough that it does not go past flush on the inside and thin enough head to clear the fellow will work.
Years ago I made my own with a short piece of threaded rod,tacking a nut to the end then grinding it thin.