Abstract: A storage rack assembly comprising a plurality of L shaped corner posts each having a plurality of spaced apart openings in each wall thereof for interlocking with mating tabs struck from near one end of each of a plurality of beams. Each corner post opening has a central area wider than its opposite ends, which ends lie on a line coaxial with the elongate axis of a post. Each tab comprises a central portion spaced from the beam, two opposed connecting arms extending outwardly from the central portion coaxial with the elongate axis of the beam and transversely of the connecting arms. Upon assembly, the elongate axis of the beam and post are arranged in perpendicular relationship enabling a tab to be inserted through the wider central area of an opening and then moved downwardly to provide a three point contact defined by the opposed ears extending over and contacting one face of one post wall and by one connecting arm engaging and bearing against one end of the opening.

Abstract: A process and product formed therefrom for providing a protective closure for hollow structures that are used in high velocity applications. The protective closure comprises a closure material and a sheath material permanently bond to each other. Both the closure material and the sheath material are "set" in a configuration of the closure. The protective closure is fabricated by having the closure material and the sheath material permanently bonded and "set" to each other by subjecting them to a high energy impulse force.