Securing mechanism for casing for transporting communications computers and electronics racks

A casing for transporting a communication rack that includes a bottom plate, four side walls, a top side and a securing mechanism for securing the communication rack to the bottom plate. The securing mechanism includes two beams and two supporting brackets. Each beam includes two holes and each end of each supporting bracket includes a piece with a threaded hole. The beams are designed to be connected to an upper side of the bottom plate and the supporting brackets are designed to be connected to two side walls of the communication rack. By that enabling to screw four screws that pass through the holes in the beams into the threaded holes in the supporting brackets for securing the communication rack to the bottom plate, and preventing the possibility to attach the side walls to the bottom plate before screwing these four screws.