Modding Computer Holes

Anyone know the diameter in mm of Motherboard standoff holes, PCI hold down holes, Radiator fan mounting holes, and Case side panel screws? I've seen so many different ones, I was wondering what was the standard if it exists.

Thanks,
Mal

 

if its a scratch build its what ever you really want, i would suggest getting a PC screw kit

your head will roll

so... i know its not much help
its like shopping for a car, there are more choices then you care to honestly deal with

 

Is FrozenCPU back in business I thought they went belly up?

I guess I'm not understanding the terminology. M3, M4 and 6/32 etc. Are those screw dia. or thread types? How to do you find thread count and spacing? Am I over thinking this? My head hurts

Mal

 

Google atx form factor, drill tap sizes, fan dimensions, etc. Standard screws used are m3 and 6-32. 4-40 seems to be common in old I/O screw connectors.
M4 is common for radiators, but often ship with 8-32 for US compatibility. It's easier for us to find crazy- long screws in US format, for example.

 

M3, M4 i believe are screw standards

6/32 is the thread types (of some sort)

im not sure what happened with all of that FrozenCPU stuff, but i just linked it to show you what i was thinking of. and what exactly is out there

 

Thanks Cheaps, I will try that.

Mal

 

I'm researching something similar for my next build. Mobo's use M3 screws and have a clearance hole of about 4mm.

But it seems the clearance hole for M3 is about 2.9mm and above(i.e the hole you need to drill for a M3 screw to fit through). A hole for tapping a thread needs to be about 2.6mm

Hope that helps!

 

Yes that helps alot, thanks.

Mal

 

im sure that you got what you needed by now
but here is some more info on holes for metric threads (maybe more if you look)

metric threads link

 

Yeah I got what I needed, but I still appreciate the help.

Mal