Please provide basic dimensions for the A13HD mounting flange.
The A13HD is metal and has these characteristics:
Diameter: 3.0 inches
Total height: 1.312 inch
Base thickness: 0.52 inch
Length of 5/8"-27 external thread: 0.792 inch
Three holes for mounting screws are located every 120 degrees and 1.0 inch out from center.