Jim,
I have an ST 46 from Big Art from the early 70's and want to put hex head bolts in it. The bolts now are not anything I have. Checked 4-40 and 3MM and they don't work at all.
We are getting ready for the Nats. Terry in Intermediate, Jack Dock in Beginner, and I will fly Classic just cause we will be there.
looking forwrd to seeing you and Lila.
Ken