The note suggests that the customer either wants a long or perhaps stepped part fully threaded with all the pitches matching, so that an infinitely long female thread gage will glide right on,
or the customer doesn't want the severe deformation associated with thread rolling to occur in stages, presumably because the material work-hardens badly.
In either case, the customer should be doing the clarifying, not us.
Mike Halloran
Pembroke Pines, FL, USA