I just installed two new fans because my other two were not giving enough air to the computer. I had two little plastic bits break (The 4/8 screw holders) and the screws given were wrong size.
So put in smaller screws that came in with the case to work and they are snug.
They work fine and there shows to be no problems. However im just worried how well they will hold up?
NZXT Phantom
http://www.newegg.ca/Product/Product.aspx?Item=N82E16835181054