“What you see in the pic above and below is 1″ galvanized floor flanges. I tapped a hole into the lip of each flange so I could insert a screw to tighten to the griddle stand legs. The deep fryer legs were bigger so that took 1 1/4 inch flanges.”

Excellent Idea and execution, and you have now answered one of the most often asked questions on the Pro RF site. Great job.
jack

No doubt! Excellent work King. Where did you find these floor flanges? Mcmaster? Looking now. 🙂
Propane is fun