I don't remember where I saw it, but the motherboard does have g 1/4" threads. It stated that it had 3 different size fittings that comes with the board.
Newegg video, he states that it's g 1/4" threads. http://youtu.be/XaAsC1JS-a4?t=2m19s
I contacted Asus back in like January to make a...