Patent ID: 7464513

Claim:
A fitting constructed and arranged to retain a plurality of accessory members to a vertical structural unit which unit has a plurality of vertical sides wherein each side has a portion defining a side aperture; said fitting comprising (i) a body; (ii) a body plate member attached to said body and constructed and arranged to be cooperable with a said side of said structural unit and receivable in intimate engagement within said side aperture, the body plate member being of a size smaller than the body so that only the body plate member can be received in said side aperture; (iii) attachment means constructed and arranged to attached said fitting to said structural unit with said body plate member received within side aperture; and said body having a portion defining at least one accessory-receiving means constructed and arranged to retain said accessory member to said body, the fitting being in combination with said structural unit, wherein said body plate member is received within said side aperture of said structural unit, and wherein said side aperture has an essentially circular shape, and has a plurality of inwardly protruding side portions, and wherein each of said side portions defines a bolt-receiving aperture.