HP 1Gb/2Gb switch 16B A7340-96002 - Manual (Page 14)

8 Quick Start Guide
Figure 4. Installing the Tinnerman Clips (HP Rack)
– For a Compaq/Rittal rack, install (2) #10-32 square Tinnerman nuts
for each of the front columns of the rack in the top and bottom
positions of the three-hole EIA pattern. Also install (1) spacer in the
center position for each column on the front of the rack. See
Figure 5 .
Figure 5. Installing the Tinnerman Nuts and Spacers (Compaq/Rittal Rack)