Thread and pitch aren't going to matter, as long as the screw fits through the hole. You're going to be buying nuts with the bolts anyways, if they aren't included.
All that is to worry about is the length of the bolt. Just take a tape measure and measure the thickness of your control panel and about 1/4" to 1/2".
And don't forget some washed for underneath, and maybe even some lock washers.