An external fixation component comprises two capture members (10, 20) adapted to capture independently a first and a second element of an external fixation system. Between them a rotation member (30) is provided, coupled to both capture members (10, 20) such that the coupling allows the two capture members (10, 20) to rotate about three axes relative to each other. Each capture member (10, 20) comprises a central locking screw (40) extending therethrough and defining a longitudinal axis of the associated capture member (10, 20). The rotation member (30) comprises two rotation blockers (63, 64), each blocker (63, 64) providing one interface surface (55) adapted to be in contact with a complementary interface surface (45) of one of the capture members (10,20), each blocker (63, 64) further providing a surface opposite to said interface surface (55) comprising an inner cylindrical surface (86). The rotation member (30) comprises a central disc element (61, 62) forming a rolling surface (85) as complementary surface to said inner cylindrical surface (86) of the corresponding rotation blocker (63, 64) and it comprises two nuts (65, 66), wherein each nut (65, 66) is associated to one locking screw (40) of a corresponding capture member (10, 20) and wherein each locking screw (40) of a capture member (10, 20) is extending through the corresponding rotation blocker (63, 64) and engages the corresponding nut (65, 66) for an individual locking of each capture member (10, 20, 110, 120).
