Corsair H60 2018 screw length with slim fan confirmation

[pegotico]

So im going to change the fan on my H60 2018 for a slim 120 because of space limitations. I read in some other place that with a slim 120 you should use 3/4" long screws, because the included ones would destroy the fins and cause leakage. As i understand from the past post I've read here in the forum, it seems the already included 1 1/4" will do just fine. Even if the screws go a little farther, nothing will happen with the fins and no leakage will occur. 

Is that right? can someone confirm this please?

[c-attack]

Assuming your "slim" fans are 15mm, you are looking for a 6-32 machine screw that is approximately 17-20mm in length.  You only need 2mm to grab the radiator and they rest is about case frame thickness or how the fan is mounted.  If it's straight to the radiator with no case to pass through, 17mm is all you need.  3/4" (19mm) should be fine for most installs.  I would not use the 1  1/4 inch screws.  It would be a brutal effort to push that through the radiator fins and no guarantees you won't rupture a channel at that length.  

Edited August 20, 2023 by c-attack

[pegotico]

10 hours ago, c-attack said:

Assuming your "slim" fans are 15mm, you are looking for a 6-32 machine screw that is approximately 17-20mm in length.  You only need 2mm to grab the radiator and they rest is about case frame thickness or how the fan is mounted.  If it's straight to the radiator with no case to pass through, 17mm is all you need.  3/4" (19mm) should be fine for most installs.  I would not use the 1  1/4 inch screws.  It would be a brutal effort to push that through the radiator fins and no guarantees you won't rupture a channel at that length.  

It would be going through the case first - fan - radiator.

[c-attack]

I think 6-32 and 3/4" is a good fit.  

[pegotico]

Ok! Thanks!

[pegotico]

If this helps someone...

I bought 6-32 and 3/4" from Lowes and this didn't work. Was able to get them 7/8" long and was the perfect size. I would think the bracket to install the rad was a little thicker.