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 | ||
