You know brian I'm not smart enough for that route.
I don't understand thread size with regard to length, with regard to flat shaft, threaded then coarse fine and whatever mm they are.
I could order one of those racks of nuts with all the metric sizes. It's expensive kinda.
But then I have to determine How to denote the non threaded portion of the bolt vrs the threaded.
I know a quick google search and I'll be a pro.
Your right I'll order the rack of nuts and take ten minutes to educate myself in the rest..