VarioClipLock horizontal strut screwing module for use with AV Stumpfl VarioClipLock frame or system components. The module is identified by manufacturer article number BCL-X/HST/VM/X and is supplied as an individual piece. The available product information does not specify dimensions, materials, connector interfaces, load ratings, or included hardware. It is a mechanical frame accessory rather than a projection screen, surface, or active video device.