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I have trouble screwing in my pc fans 120mm

tamehah2
By tamehah2
in Cooling
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I have tried to different brands of fans and for both of them I have struggled to screw them in. So now my fans are in place but are loosely screwed in. 

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You're probably using the wrong screws.

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Pics of the fans, the screws and the case would probably help in determining your issue here.

I don't badmouth others' input, I'd appreciate others not badmouthing mine. *** More below ***

 

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Due to the above, I've likely revised posts <30 min old, and do not think as you do.

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Most of the fan screws I've encountered just cut their own threads into the holes in the fans. They take a worrying amount of effort compared to screws that meet machined threads in other parts, but that's normal.

 

Try tightening them 1/4 turn, then back off 1/8 of a turn, then forward another 1/4, then back another 1/8. That should help keep the burr from binding the fresh threads up. Just don't overtighten, or you'll ruin the threads you just cut in the plastic and you'll have to come up with an alternate solution, like longer machine screws and nuts from the hardware store that can reach all the way through the case and the fan.

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18 minutes ago, tamehah2 said:

I have tried to different brands of fans and for both of them I have struggled to screw them in. So now my fans are in place but are loosely screwed in. 

into a radiator (thin screws)

or into a case (thicc screws)

 

If its the case you need to use a lot of force and those screws actually dig into the plastic of the fans.

Insert ram related question here: https://linustechtips.com/main/topic/1197132-setting-ram-speed-xmp-docp-for-dummies/

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7 minutes ago, Needfuldoer said:

Most of the fan screws I've encountered just cut their own threads into the holes in the fans. They take a worrying amount of effort compared to screws that meet machined threads in other parts, but that's normal.

 

Try tightening them 1/4 turn, then back off 1/8 of a turn, then forward another 1/4, then back another 1/8. That should help keep the burr from binding the fresh threads up. Just don't overtighten, or you'll ruin the threads you just cut in the plastic and you'll have to come up with an alternate solution, like longer machine screws and nuts from the hardware store that can reach all the way through the case and the fan.

+1 on this.  If the screws are screwing into the fans themselves, a lot of the fans don't have pre-cut threads and the screws literally cut threads into the plastic as they go, so the first time you install a particular fan, you've gotta use a little bit of force to get the screws tight.

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