Max thickness for custom mobo stand-offs?

[Mortis Angelus]

I need to make a custom stand-off for my custom case build; I need to suspend my mobo up from the case-floor about 3 cm. Like so:

 

But I obviously need to buy some materials for this, and thus I wonder, what is the recommended thickness for such a stand-off?I want maximum strenght, but I obviously don't wanna risk a short-out by having my metal stand-off touching sensitive circuits.

 

P.s. If anyone wonder, it is for mITX form factor.

 

[Narnash]

You can buy regular mainboard standoffs in different hights, they are usually M3 threaded and 5 mm hex wide. The holes are usually also big enough to fit M4 screws, the actual standoff schouldn't be wider than the small metalized (solder to ground the motherboard) areas around the hole (I guess 8-10 mm)

[InertiaSelling]

13 hours ago, Mortis Angelus said:

I want maximum strenght, but I obviously don't wanna risk a short-out by having my metal stand-off touching sensitive circuits.

Maybe put tiny o-rings between the board and the standoffs ? I don't think it relies solely on the solder around the holes for grounding.

[W-L]

13 hours ago, Mortis Angelus said:

I need to make a custom stand-off for my custom case build; I need to suspend my mobo up from the case-floor about 3 cm. Like so:

 

But I obviously need to buy some materials for this, and thus I wonder, what is the recommended thickness for such a stand-off?I want maximum strenght, but I obviously don't wanna risk a short-out by having my metal stand-off touching sensitive circuits.

 

P.s. If anyone wonder, it is for mITX form factor.

 

6-32 threaded stand offs are standard and you can have it 3cm that's not a problem, just make sure it is fastened securely to the base material. 

https://www.fastenal.com/products?r=~|categoryl1:"600206 Hardware"|~ ~|categoryl2:"611197 Electronic Hardware"|~ ~|categoryl3:"600237 Standoffs"|~ ~|sattr03:^"Female / Male"$|~ ~|sattr08:^5pound6$|~

[Mortis Angelus]

20 hours ago, Narnash said:

-snip-

 

8 hours ago, InertiaSelling said:

-snip-

 

7 hours ago, W-L said:

-snip-

Thanks for the suggestions guys! I will look into these options. But for the sake of this thread and educational purposes for those else (including me) who want to make our own stand-offs, do you know the approximate max thickness one can use?

[W-L]

2 hours ago, Mortis Angelus said:

 

 

Thanks for the suggestions guys! I will look into these options. But for the sake of this thread and educational purposes for those else (including me) who want to make our own stand-offs, do you know the approximate max thickness one can use?

There is no max height per say as long as the standoff is properly secured and the board can be fastened to it. 

[Mortis Angelus]

49 minutes ago, W-L said:

There is no max height per say as long as the standoff is properly secured and the board can be fastened to it. 

I realize I used wrong wording. Thickness = diameter.

 

But I found my answer in this thread over on tomshardware:

http://www.tomshardware.co.uk/answers/id-2449956/motherboard-standoff-dimensions.html

 

"...the standoff provided has to be a minimum of 6.5mm and the external cross section has to fit within a 10mm x 10mm area around the standoff hole."

That was  the answer I was looking for.