Question about Icy Box IB-MS314-T

I have a table which has the cable management box right underneath. I previously had the "Neomounts by Newstar FPMA-D960D" which unfortunately does not allow me to use this cable management, when this monitor holder is attached to the table, it holds the table and this box together... There is about 1.5 cm (space) between the box and the table. It was also not possible to attach this monitor holder only to the table (above the box) because the screw is underneath. What about this monitor holder? Does it also have the tightening screw underneath? I only have about 1.5 CM between the table and the cable management box.