- City
- Cave Creek
- State
- AZ
1/4" x 20. The red part is 3/4" in diameter. The height of everything is roughly 23/32", with the threaded part being 23/64.

I think this is probably a closer match, and it comes with a red headWonder if this could be cut/turned down to work ?

Anyone have a picture of where the knob goes ?

No, it secures the front hoop that goes between those two bars (those bars go above the doors, between the windshield and rear hoop).Is that for length adjustment ?