A slide plate (20) for a cam-type closure of a clamping device (1) for releasably connecting two profiled pieces (2). The slide plate has a coupling region (11, 28) for coupling with locking elements (4, 5, 6) of the clamping device (1). The slide plate (20) has an inner opening (23) for receiving an eccentric roll (22) of the clamping device (1), which can be used for the axial displacement (30, 130) of the slide plate (20). A spring region (27) is provided between the inner opening (23) for receiving an eccentric roll (22) and the coupling region (11, 28).