https://www.thingiverse.com/thing:4441076 presented a thumb screw to replace the wing nut on the front-left corner of the BIBO bed. It is too wide for the other two positions.
I have created a smaller version to fit the right-front corner and the back-center.

A M3-.50 nut is required.

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PS: This is a remix of my earlier version, created to help lower the height of the air filter so it doesn't contact the underside of the bonnet/hood.

Prusa

I3 MK3S

No

No

200

50