Western Digital Ultrastar Data60 Installation Manual page 45

Installation Guide
b. If the Ultrastar Data60 will be installed in a rack for shipping purposes, install four more M5
cage nuts in the holes 3-6 of the 4U space. These will receive the M5 x 12mm T15 Flat Head
Torx screws that secure the enclosure to the rack with the shipping bracket.
Figure 21: Cage Nut Spacing
Install the rear cover alignment brackets and secure the rear rails.
Step 6 :
5. Installation
5.3 Rails Installation
36