Abstract: A rotatable connector joint formed by a main joint body having an axial passage and a ring groove, followed by an axial narrowed portion with a bevelled edge, followed by another widened portion, with a supporting wall for a hermetic O-ring used during an insertion of a terminal end of a rotatable joint body into the main joint body. The rotatable joint body includes a supporting wall for the ring, followed by a hexagonal external projection. The rotatable joint body including at its other extremity, a male clamp or a female clamp, with external screw threads or internal screw threads, the latter being equipped with an axial passage and having, at the front extremity, a narrowed portion which, with the insertion of a cylindrical tool with a tapered point, expands the terminal end and accommodates it in the bevelled edge and ring groove of the main joint body, locking the rotatable joint body axially.