The standard provides specific guidelines for the holes and hardware used to secure equipment: Mounting Holes : Holes should be 7.0 ± 0.1 mm in diameter. Thread Types : Standard thread systems include (preferred), , or imperial Hole Spacing
If you're writing a technical essay, I can help you like thermal management requirements or fastening systems (M5 vs. M6 vs. 10-32 screws). Would you like a more detailed breakdown of those? Eia-310-D 1992 | PDF - Scribd eia310d standard pdf
This assumes you're building a feature to the standard’s specifications from its PDF. The standard provides specific guidelines for the holes