Storage rack assembly and mounting clamp therefor

In a mounting clamp assembly for detachably securing horizontal members to posts, the combination comprising a post having a polygonal cross section, a sleeve having an internal cross section complementary to said cross section of said post and detachably secured to said post in tightly fitting engagement therewith, a horizontal member secured to said sleeve, a projection on said post below said sleeve preventing downward displacement of said sleeve, and a plurality of resiliently deformable S-configured clamping members, said sleeve comprising a pair of interfitting sections each having two horizontal and two vertical edges, a generally L-shaped finger along each of said vertical edges and a recess along the base portion of said fingers, said fingers on said sections being oppositely disposed and interfitting, said clamping members each having hook portions adjacent the ends thereof offset in different planes with one of said hook portions being seated in the recess of one interfitting finger and the other of said hook portions being seated in the recess of the other interfitting finger to prevent inadvertent disassembly.