Abstract: An inset gripping device in particular for sliding leaves, comprising a pair of frames extending in a longitudinal direction (X-X) and provided with an associated opening extending inside them over a partial section of the longitudinal length of the said frame, the parallel longitudinal sides of said frame being connected by at least one cross-piece extending in the transverse direction (Y-Y), said cross-piece comprising at least one seat for receiving corresponding screws for relative fixing of the frames and at least one central seat for insertion of the means for joining a cover plate for frontal closing of the frame.