Summary

First step in building my arcade cabinet is getting the buttons set up. This is set up to hold 2 rows of 4 buttons + Start/Select, a joystick, and the controller board. If you want to transfer the holes to a board it includes a router template and washers.

The controller board uses M2.5 nuts/bolts (M2 should probably fit too). The joystick and board itself use M4 nuts/bolts, if you don't countersink the holes I recommend buttonhead cap screws and the washers.

This is the kit I used, but they all look about the same:
https://www.amazon.com/dp/B07JFXQSM5