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    M320 Mounting Hole Locations for Four-Post Racks or Cabinets

    Table 1 specifies the holes in which you insert mounting screws (an X indicates a mounting hole location), and cage nuts if needed. The hole distances are relative to one of the standard U divisions on the rack. The bottom of all mounting shelves is at 0.04 in. (0.02 U) above a U division.

    Table 1: Four-Post or Cabinet Rack Mounting Hole Locations

    Hole

    Distance Above U Division

    Large Shelf

    Spacer Bars

    Small Shelf

    51

    29.51 in. (74.9 cm)

    16.86 U

     

    X

     

    42

    24.26 in. (61.6 cm)

    13.86 U

     

    X

     

    33

    19.01 in. (48.3 cm)

    10.86 U

     

    X

     

    30

    17.26 in. (43.8 cm)

    9.86 U

    X

      

    24

    13.76 in. (34.9 cm)

    7.86 U

     

    X

     

    15

    8.51 in. (21.6 cm)

    4.86 U

     

    X

     

    6

    3.26 in. (8.3 cm)

    1.86 U

     

    X

     

    3

    1.51 in. (3.8 cm)

    0.86 U

      

    X

    2

    0.88 in. (2.2 cm)

    0.50 U

    X

     

    X

    1

    0.25 in. (0.6 cm)

    0.14 U

      

    X

     
     

    Published: 2010-10-26