Hey -- looking for some information on the holes that are underneath the rear hamburger emblem. Size (diameter in mm) and spacing (distance from center to center) to be specific

I've got an old 240 Fairlady piece that I want to put on the center in the back and just need to solder on some mounting pegs (something to fill the holes -- i'll use double-sided adhesive for the rest of the badge).

Thanks in advance!