Understanding mounting hole size for front panel

Layout
1

I try to design my first stuckable pcb that will contain 3 pcbs together.

here is my 3 parts pcb: (right hand side is the front panel drill holes)
I looked on the jack datasheet and I understand 6mm hole is needed: Thonkiconn – 3.5mm Jack Sockets – Thonk – DIY Synthesizer Kits & Components

Screenshot 2025-08-01 at 14.35.03
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does it make sense the way my layout is? it seems to me that the hole is too big? and there will be no space for nuts on the jacks?

3D:

Screenshot 2025-08-01 at 14.42.48
Screenshot 2025-08-01 at 14.42.481566×1920 371 KB

2

I wrote 6.1mm in the radius option in kicad instead of 3.05mm . this was my mistake

Screenshot 2025-08-01 at 14.59.32
Screenshot 2025-08-01 at 14.59.32758×912 79.9 KB

3

Make sure you use the MAX tolerance, plus some additional tolerance due to registration and solder position

4

Thonkiconn jacks (both the new improved and the older ones) have a 6mm shaft with bushing, so I use a 6.1mm hole. (Diameter, not radius, but you already noticed that).

By the way there is a 3D library covering Thonkiconn jacks
GitHub - clacktronics/AudioJacks: KiCAD footprint library and 3D models for commonly used connectors used in synths and other audio equipment