BUMP! Has anyone solved this because I've got the same issue with the CL480 rad. Im trying to run it with a push/pull fan setup but cant find the right screws for the threading. I bough a bunch of 6-32 but the thread was too fat. My best guess would be that they're metric m3x30mm but if someone could confirm that id really appreciate it before I drop $25 on more screws from amazon lol. Thanks fam!