HP 2530-24 Installation And Getting Started Manual page 33

2.
Install 12-24
screws
Figure 2-4. Mounting in a rack
Hold the switch with attached brackets up to the rack and move it
vertically until rack holes line up with the bracket holes, then insert and
tighten the four number 12-24 screws holding the brackets to the rack.
Installing the Switch
Installation Procedures
2-11