I don't have much experience with running threads myself, but I have seen all-threaded nipples of various lengths used with double locknuts & bushings at each end. Would this violate 346-8, if they were used in accordance with 346-9(b)? Or only if they were field-made? Also,in what lengths are these nipples commercially available.
Originally posted by resqcapt19:
All field cut and threaded conduit requires taper threads, not just those in calssifed areas. Also because 346-8, the only time running thread time you can use running thread is if it is "factory" cut.