# Hardware for Pi projects

**URL:** <https://forums.pimoroni.com/t/hardware-for-pi-projects/12158>\
**Category:** Projects\
**Created:** [November 11, 2019, 12:54pm UTC](https://forums.pimoroni.com/t/hardware-for-pi-projects/12158 "2019-11-11T12:54:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Crowbot](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/crowbot/32/5888_2.png) [@Crowbot](https://forums.pimoroni.com/u/Crowbot)\
**Post date:** [November 11, 2019, 12:54pm UTC](https://forums.pimoroni.com/t/hardware-for-pi-projects/12158/1 "2019-11-11T12:54:10Z")

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I’m looking at hardware kits for the Pi (standoffs, nuts and bolts) and I can’t seem to figure out what size to get. I see M2 and 2.5mm mentioned. Which is best? TIA.

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**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\
**Post date:** [November 11, 2019, 1:24pm UTC](https://forums.pimoroni.com/t/hardware-for-pi-projects/12158/2 "2019-11-11T13:24:32Z")

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M 2.5 is the stock size. Adafruit has some kits with nylon ones in them, all different lengths.  
[https://www.adafruit.com/?q=stand%20offs](https://www.adafruit.com/?q=stand%20offs)  
The metal screws are what I find hard to find. Especially “long” ones. I savaged a bunch from a dead laptop, and that did me fine for a while. Starting to run out of then now though. I have a couple of enclosures with thick walls so the stock screws are just to short to use to mount a Pi with standoffs to the inside of the enclosure.

Pimoroni has a kit too

> **[Premium Pi standoff selection – Pimoroni Store](https://shop.pimoroni.com/products/premium-pi-standoff-selection)**
>
> Specifically selected for Pi HATs and pHATs this standoff selection also includes male to female standoffs to allow you to stack your boards securely

  
The ones with a threaded stud on one end are what you want if your stacking more than one hat on top of a Pi. Or want studs on the back side of the Pi for mounting it to something and it has a hat on top of it.

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**Author:** ![Crowbot](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/crowbot/32/5888_2.png) [@Crowbot](https://forums.pimoroni.com/u/Crowbot)\
**Post date:** [November 11, 2019, 2:21pm UTC](https://forums.pimoroni.com/t/hardware-for-pi-projects/12158/3 "2019-11-11T14:21:48Z")

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Thanks, that’s what I thought.

Metal hardware is no problem. ACE Hardware sells metal screws but I prefer nylon around my electronics. I found an M2 kit on Amazon that has screws, nuts and standoffs. 2mm vs 2.5mm shouldn’t be a problem.