Stepside fender support brackets

[x1buellist]

I am looking at replacement fender support braces. I see them listed on a couple sites but they are different than what I see on my 66 stepside truck. I have a brace that connects the fender to the frame. Where it attaches to the frame it is threaded and goes through the frame with a nut on each side. The ones they sell look to have eyelets instead of threads. Maybe mine are not original or correct. Anyone know which is correct?