I think you will have more luck at a local machine shop, either repairing the existing thread (weld and redrill and tap), or drilling and tapping a new hole elsewhere on the donut.
Ken H. On Fri, 14 Oct 2022 at 21:44, carlfreemanjr--- via CnC-List < cnc-list@cnc-list.com> wrote: > Hi all, > > Dropped the rudder on our C&C34. The set screw on the Donut nut were > seized so they got drilled out. > > The rudder post threads fared fine but the Donut nut needs to be changed. > Does anyone have a source for these or an alternative? > > Sent an email to Holland Marine but am not hopeful. > > Thanks for any help, > > Carl >