FIELD: machine building.
SUBSTANCE: group of inventions relates to threaded joints. A kit to make a threaded joint used in hydrocarbon wells comprises the first tubular component having two threaded zones with identical leads, the second tubular component having at least two threaded zones, the third threaded component having at least one threaded zone on its inner ring surface and at least one threaded zone on its outer ring surface. The kit is made so that the threaded zone on the inner ring surface of the third component can interact with one of the two threaded zones of the first component by screwing, the threaded zone on the outer ring surface of the third component can interact with one of the two threaded zones of the second component by screwing, the second and third components additionally comprise the units to define the end of the said threaded zones' screwing, another threaded zone set at the end of the first component can interact with the other threaded zone on the second component by screwing.
EFFECT: invention provides higher reliability of the threaded connection.
16 cl, 3 dwg
