Missing hardware seems to be a chronic problem based on my experience and other reviews. Disappointing quality control.

Edit now that Ive assembled the shelf I am even more disappointed. The hoops on top are too bug and forced the nut out of the top shelf frame, leaving an ugly gap. The assembly was extremely difficult because the channels for the rails were extremely tight, to the point where putting pieces together scraped off the paint. Not all of the glass shelf holders are set to the right height and so some of the glass shelves (even with the rubber bumpers) are wobbly. 

Its pretty but super cheaply made.