Knob for M4 Screw

Knob for a missed M4 screw for my car DVR / dash cam.
Looking good, simple and effective.
May be used for any other application...

Would need M4 screw and a nut.

Print with NO support.

Sharing Fusion 360 source file for you to be inspired and re-do it for other screw sizes...
It's parametric, so tune up Parameters for other screw sizes.

UPDATE: Also sharing a Fusion360 file for M3 Knob...