THREADED JOINT Russian patent published in 1997 - IPC

FIELD: attachment of members of metal frames, in particular, supports of electric lines. SUBSTANCE: threaded joint includes bolt, nut and counter-part made in the form of bush. Bolt is provided with circular groove. Bush has walls of varying thickness with two diametrically opposite holes. Bush is fitted on bolt embracing the lateral surfaces of nut. Ends of two locking members pressed in holes of bush are received by circular groove of bolt. Bush may be made in the form of inner and outer rings mounted concentrically. Such construction makes the joint permanent. EFFECT: enhanced reliability. 2 cl, 10 dwg