What size truss rod nut on a 1969 GC 12-string?

Bluebird Posted 2015-07-31 10:00 AM (#513947) Subject: What size truss rod nut on a 1969 GC 12-string? Joined: May 2002 Posts: 1445 Location: Nova Scotia, Canada I'm sure we covered this before but I can't seem to find the info. It is not a 1/4" and whatever it is will have to be a thin-walled socket because anything bigger will not slide over the nut. Wayne