acme threads

[rmj]

i am trying to find a nut for a 1/2"-16 acme thrd arbor for a delta-homecraft shaper. this does not appear to be a std size so have not been able to locate one. i may have to have one made if necessary. thks for any help. rmj

 

[plasgears]

McMaster-Carr catalog has an extensive section on acme thds. A cursury look did not show your requirement, but I may have missed it.