RS240 Screw Size??

dazz25

dazz25

dazz25

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23 Jul 2007
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1,423
Hi,

Can anybody help me find the correct screw size for the XSPC RS240 radiator?

I need to buy longer screws than the ones supplied. All websites i've seen say M4 but i've just been to the local DIY shop and purchased some M4x40mm and they're to big!!

On the packet that I purchased it says 'M4x40mm Machine Screws...Straight slot, Countersunk head'

Have I maybe purchased the wrong type? Or does the radiator take a different size?

Any help would be appreciated.

Cheers
 
M4 x 30mm is right for a 25mm fan or m4 x 8 for a straight through the side of the case.
 
The screws supplied are M4x30mm and they're not long enough. So is it not possible to get longer screws in this size?
 
M4 x 30mm should be plenty big enough, M4 x 35 just a bit too long - what are you trying to do?

1 case wall + 1 25mm fan + 1 fan guard = 27mm, so 30mm should be fine.

M=metric, 4 = 4mm diameter, x30 = 30mm shaft
 
I should have explained what I was trying to do!

Heres a quick sketchup:

Case.jpg


As you can see I need some kind of fan shroud to keep the radiator away from the case. The main reason for this is so the botton fan has enough of a gap between itself and the case. If there was no shroud the fan would be nearly touching the case which will restrict air getting into it.

I hope this makes sense!
 
I was looking for Swiftech radbox's for ages they seem like gold dust once in stock there out of stock the next day, I found a cheap solution though :D which was Akasa Fanadapter 80mm-120mm worked a treat at 1/5 of the privce ;)

Ninja
 
Thanks for all of the replies guys.

The only thing that is confusing me is the fact that I purchased M4 bolts this afternoon and they are bigger than the bolts that came with the radiator so they don't even fit in the hole!

I don't want to purchase them from elsewhere only to run into the same problem.
 
Cob said:
If they're too bigger then surely it would be wise to try some M3's.
Click to expand...

Hence the reason for the post! The shop didn't have any M3's that were longer than I currently had so I couldn't get them.

I just wanted to ask people in case they have come across the same problem and can confirm that I need M3 and M4 bolts as all of the websites say M4.
 
Have you tried the M4 bolts with nothing else there ie. just threaded them into the radiator?

I have an XSPC RX240 and the screw holes didn't line up because the side panels had been mounted wrong. 20 minutes with a pair of pliers and a drill fixed that. He'll never sell me a bad radiator again - I can tell you!:D

As far as I am aware, all XSPC radiators are M4 bolt, Feser TFC are M3 bolt and Thermochill are M3 Self-tappers.

[Edit]You are 100% certain it is an XSPC radiator, aren't you?[/Edit]
 
WJA96 said:
Have you tried the M4 bolts with nothing else there ie. just threaded them into the radiator?

I have an XSPC RX240 and the screw holes didn't line up because the side panels had been mounted wrong. 20 minutes with a pair of pliers and a drill fixed that. He'll never sell me a bad radiator again - I can tell you!:D

As far as I am aware, all XSPC radiators are M4 bolt, Feser TFC are M3 bolt and Thermochill are M3 Self-tappers.

[Edit]You are 100% certain it is an XSPC radiator, aren't you?[/Edit]
Click to expand...

Yeh i'm 100% it's an XSPC. I have tried screwing them straight in but the hole is to small. The screws are bigger than the screws supplied even though the packet says they are M4.

I'm going to go to a different shop this afternoon and take one with me so I can compare before buying! Probably what I should have done in the first place!!
 
You can just measure it with a ruler - if the hole is bigger than 3mm it's an M4.
 
There are two types of metric thread, course and fine. An M4 course thread has a tapping hole of 3.3mm while the fine thread uses a 3.5mm tap hole. (Sad I know but it seems some things stick from an apprenticeship).
 
Papa_Benjie said:
There are two types of metric thread, course and fine. An M4 course thread has a tapping hole of 3.3mm while the fine thread uses a 3.5mm tap hole. (Sad I know but it seems some things stick from an apprenticeship).
Click to expand...

Thanks for that - this is all hideously complex! As if having to be a small-scale plumbing expert wasn't bad enough, now we have to be bolt thread experts as well.

Do you know how that would be specified when you order them? M4F or M4 Fine etc.
 
It is! Very complex!

Everywhere says the radiator is supplied with M4 screws so that what I purchased. How can something like this be so hard?!
 
If the screws you bought are too big I'm guessing you may need the course thread, bear with me on how to order them as its been a while (I normally book bolts out of the stores which have already been sorted).

I might have some kicking around from an xspc rad in the cellar I could take to work tomorrow and find the thread gauge tools. At least we would know which thread is needed.
I'll speak to the storeman nicely and see what the difference is in ordering.
 
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