That was my original mounting plan. I removed the threaded end from the poles, then drilled a hole straight through the end. This allowed me to use a pin to attach the rod to the brackets, leaving the brackets attached to the awning arm. The drawback is that the holes in the rod are easily deformed. So I shifted to the black nylon fittings from a bimini top. The pole end and the bracket are the same size, so I put the threaded end back on and used two part epoxy to attach it. The last picture shows screws at the hinge point of the bracket, but as soon as I can get to the hardware store, I'll be replacing them with 1/4" round lock pins similar to the ones in the first picture (those pins are too large).
These are not my photos, but much better illustrations of how it works:
Hope this helps!