The straight thread pattern is a continuous pattern from top to bottom, and it is usually sufficient to use a fixed stretcher to move the workpiece back and forth.
Iphethini yentambo eqondile iphethini engaphazanyiswa kusuka phezulu kuye phansi, futhi ngokuvamile kwanele ukusebenzisa umshini wokudweba ongaguquguquki ukuhambisa okokusebenza emuva naphambili.