17mm ball socket mount tightening ring

thingiverse

I needed a tightening ring for my phone mounts that attach to the standard 17mm socket. The cheap plastic tightening rings kept breaking on me. I took the original nut and increased it by 17% and found it fit perfectly on all my mounts. Depending on the phone mount you may have low clearance due to the tightening wings. I may add another stl without the wings.