Patent attributes
A profile rail has a face and is formed with a longitudinally extending channel open at the face and with longitudinally extending stabilizing formations on the face flanking the channel. The channel has confronting ribbed flanks. A stabilizing element has a face engageable with the face of the rail and formed with a pair of stabilizing formations fittable with the stabilizing formations of the rail and with a throughgoing hole between the respective stabilizing formations and aligned with the channel when the element stabilizing formations are fitted with the rail stabilizing formations. A screw fittable through the hole has a screwthread engageable with the flanks of the channel so that the screw can clamp the element to the face of the rail.