specs - screw for ACE-board

[flampaint]

I am looking for the specs for the small screw with which an ACE board is fastened down onto its corresponding frame (into the little threaded hole in the frame, just ahead of where the trigger magnets are located).
Thanks a lot for any help!

[OneSelfLost]

It's a 4-40 - You'll need a standoff as well, not sure on length of that one