6-32 screws for mounting mobo

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It really depends on the stand offs. The thread needs to be the same so the screws go fully into the standoff. If the standoff has a different thread they will not go in all the way which would leave the connection loose or they won't tighten properly to make the electrical connection or they will vibrate loose after some time.

Standoffs can be either SAE or metric. You need to use the correct thread.

They also need to be conductive. Don't use plastic screws and don't use thread locker on them that might interfere with the elctrical conductance.
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bigpinkdragon286

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Oct 3, 2012
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Normally you mount the motherboard using a #6-32 x 4mm or #6-32 x 0.25". The other size you might run into while assembling a computer is M3 x 4mm.

If you lightly finger thread one of the screws into one of the motherboard stand-offs, you'll quickly realize whether it's the correct fit. Don't force it, and if you have to force the screw before it bottoms out, try the other size.

Most cases come with screws for mounting the motherboard. Might look in the packaging if you still have it to see if they included the needed supplies.
 
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thx1138v2

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Jun 18, 2011
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It really depends on the stand offs. The thread needs to be the same so the screws go fully into the standoff. If the standoff has a different thread they will not go in all the way which would leave the connection loose or they won't tighten properly to make the electrical connection or they will vibrate loose after some time.

Standoffs can be either SAE or metric. You need to use the correct thread.

They also need to be conductive. Don't use plastic screws and don't use thread locker on them that might interfere with the elctrical conductance.
 
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USAFRet

USAFRet

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Mar 16, 2013
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OK, no big deal.

Just that this:
"Ya I bought it used and alot of standoffs are missing and the mount screws are completely missing "

....Led me to believe a lot of things were missing.
Hence, my recommendation for a comprehensive box of case screws.
 
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bigpinkdragon286

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Oct 3, 2012
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Some parts such as optical drives use M3 x 4mm screws.

The point of the kit is to have everything right there, when you need it, and is probably the best way to go for both cost and time.

If you have no screws at all and are planning to build a computer from scratch, expect to want both size screws on hand. At the same time, some optical drives also come with the screws needed for installation, but that's never a guarantee.
 
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