# Finding correct screw type

**URL:** <https://forum.sovol3d.com/t/finding-correct-screw-type/2758>\
**Category:** Sovol SV04 IDEX\
**Created:** [June 4, 2023, 1:36pm UTC](https://forum.sovol3d.com/t/finding-correct-screw-type/2758 "2023-06-04T13:36:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aztec](https://avatars.discourse-cdn.com/v4/letter/a/ebca7d/32.png) [@aztec](https://forum.sovol3d.com/u/aztec)\
**Post date:** [June 4, 2023, 1:36pm UTC](https://forum.sovol3d.com/t/finding-correct-screw-type/2758/1 "2023-06-04T13:36:58Z")

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My SV04 kit came with 3/4 of the grub screws on the right hand extruder missing–the ones on the side that fix it in height–making it _very_ hard to lock at the desired alignment height.

Does anyone know what the specs of those screws are? They’re really tiny Metric grub screws, maybe 3mm o4 5mm long, but I’m not sure if they’re 1.5mm or 2mm or what in diameter.

Can Sovol maybe chime in? It’s always nice to have a complete screw list for replacement…

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**Author:** ![Bjoern](https://avatars.discourse-cdn.com/v4/letter/b/46a35a/32.png) [@Bjoern](https://forum.sovol3d.com/u/Bjoern)\
**Post date:** [June 4, 2023, 2:44pm UTC](https://forum.sovol3d.com/t/finding-correct-screw-type/2758/2 "2023-06-04T14:44:53Z")

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The grub screw is M3 x 3mm. M3 x 4mm will work, too.  
Write a separate e-mail to Sovol support & explain the problem. From my experience they will help you within a few working days.