2-1/8" Diameter. For threaded dash air brake valves (threaded bendix type used from 90's through today). Made with a polished billet collar with the correct built in thread. Also features a set screw in the collar to align the knob with logos, etc. to keep them tight.
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From the same Collection
Twisted Shifterz
Custom Knobs
Custom Knobs
Custom Knobs
Custom Knobs
