Abstract: A clamping gap nut, comprising: a) an internal thread (2) about a longitudinal axis (A) of said clamping gap nut; b) at least two gap ends (3, 4) which face each other tangentially and between them form a gap (5); c) and at least one tensioning element (10; 10a) connected to each of said gap ends (3, 4), for exerting a force on said gap ends (3, 4) which causes a relative movement of said gap ends (3, 4) in a tangential direction, wherein d) said at least one tensioning element (10; 10a) is connected, angularly movable, to at least one of said gap ends (3, 4) via a joint which compensates for a change in direction of said force caused by said relative movement of said gap ends (3, 4).