this is my design for a minimalist bolt ring. i think its pretty cool

maybe give it to a mechanic?

it is a size 17 ring (Diameter 17.12, EU 54, UK N, USA 7)

it is 3d printable

I have made it available in as many formats as I could. It was rendered in RHINO.

please see the images for weighting and dimensions.

the geometry count is done from the obj file

I hope it suites your project well

:)