# Screw and Nut size for STS-Pi Motors

**URL:** <https://forums.pimoroni.com/t/screw-and-nut-size-for-sts-pi-motors/15181>\
**Category:** Support\
**Created:** [October 20, 2020, 5:57am UTC](https://forums.pimoroni.com/t/screw-and-nut-size-for-sts-pi-motors/15181 "2020-10-20T05:57:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![geekinchief](https://avatars.discourse-cdn.com/v4/letter/g/c67d28/32.png) [@geekinchief](https://forums.pimoroni.com/u/geekinchief)\
**Post date:** [October 20, 2020, 5:57am UTC](https://forums.pimoroni.com/t/screw-and-nut-size-for-sts-pi-motors/15181/1 "2020-10-20T05:57:46Z")

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So with my STS-Pi, the little white screws and nuts keep falling out of the motors and now I lost a nut. Can anyone say what size these are so I can find compatible ones? I’m talking specifically about the screw and nut that hold the two motors in place.