Abstract: Device for associating a pair of planar parallel panels, particularly for producing walls for exhibition stands and the like, includes a pair of L-shaped profiled elements arranged side by side and adapted to be respectively applied at the corners of corresponding panels, spacer means adapted to mutually associate the profiled elements, tension elements rigidly associated with the spacer means and adapted to rigidly associate the device with a similar device applied in a position which is angularly opposite to the pair of panels.