# What size screw?

**URL:** <https://forum.onefinitycnc.com/t/what-size-screw/23620>\
**Category:** Uncategorized\
**Created:** [November 26, 2023, 4:02am UTC](https://forum.onefinitycnc.com/t/what-size-screw/23620 "2023-11-26T04:02:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kneepit](https://avatars.discourse-cdn.com/v4/letter/k/ebca7d/32.png) [@Kneepit](https://forum.onefinitycnc.com/u/Kneepit)\
**Post date:** [November 26, 2023, 4:02am UTC](https://forum.onefinitycnc.com/t/what-size-screw/23620/1 "2023-11-26T04:02:36Z")

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Hi all. I was doing my regular 5000 mile check up and noticed that I had a lose tiny little screw so I tightened it up, checked the rest (all were lose) and I am missing one. What size is this tiny screw and where can I get one?

 ![image](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/1/b/1b763188939fedefe2af2f7e1ef8b539f9008ecf.jpeg)  
 ![IMG_5588](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/1/a/1a8ae058291d2b2cad1f6c1eca1761541c5e2c61.jpeg)

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [November 26, 2023, 5:50am UTC](https://forum.onefinitycnc.com/t/what-size-screw/23620/2 "2023-11-26T05:50:32Z")

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Hey Kneepit,

see here:

[Common Bolt Types on the Onefinity](https://forum.onefinitycnc.com/t/common-bolt-types-on-the-onefinity/3057)

> [@Common Bolt Types on the Onefinity](https://forum.onefinitycnc.com/t/common-bolt-types-on-the-onefinity/3057/1):
>
> **Wiper grub set screw on X35 ball screw**  
> [M3 x 4mm cone tip](https://amzn.to/40oseHm)