HP TFT7600 G2 User Manual page 9

From the rear of the rack, slide the brace rail assembly in between the HP 1U Adjustable Toolless Rails.
4.
Align the screw holes on the brace rail with the screw holes on the HP 1U Adjustable Toolless Rails.
5.
Using two 6-32 screws, secure the brace rail to the HP 1U Adjustable Toolless Rails.
6.
Installation 9