System for connecting a first load-bearing component (1) to a second load-bearing component (2) in order to form a flexurally rigid frame corner, having a first connecting plate (12), which is arranged on the first component (1), and a second connecting plate (22), which is arranged on the second component (2), wherein
- a. the connecting plates (12, 22) each contain a first bore, in which a bolt element (3) is introduced in order to form a defined axis of rotation,
- b. the connecting plates (12, 22) contain further, mutually correspondingly arranged apertures (14, 24), in which is arranged at least one screw (4) which braces the connecting plates (12, 22) against one another, and
- c. the further apertures (14, 24) and the at least one screw (4) are dimensioned such that rotation is possible through a defined angle of rotation about the axis of rotation.