Electronic - Meter Gauge Panel Mount Collar 53mm Diameter

I needed a clamping collar for an old analogue panel mount ammeter to hold it in place firmly.
The original metal band was cracked and stretching when clamped. Here is my own collar design.

Requires M3 Screw size Or a coarse threaded screw for plastic.

Dimensions: 53mm ID, 3mm thickness and 6mm height.

Openscad for RE-MIX and custom adjustments.