Rather than epoxy the pin in when I installed the board, my friend tapped the ends of the pin, inserted flat head allen bolts through 1" diameter stainless caps and Loctited the bolts into the ends of the pin. The caps were machined so that the head of the bolts fit flush inside of them. The result is a one inch diameter by 1/8th inch thick disc on either side of my keel. If I need to remove the pin in the future, I will only have to lightly heat the bolts to break the Loctite and remove them.
Dale, Great idea. You've actually built the better moustrap. I haven't had any problem with my centerboard, but if the pivot pin ever needs repair or replacement I'll use my little Unimat lathe to fabricate a pin like the one you described. Joe Kidd M15 #207 "Poco A Poco"