Thank you John. I should have tapped into the brain trust here before trying to figure it out on my own. I considered using some lubricant but was quite sure any residue would have come back to haunt me. Those AN fittings are pretty amazing the way they work, completely dry metal to metal.
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I didn't get everything checked off my list yesterday but I did finish the main pieces of covering on the wings. I had to poke through the fabric where the rivets go at the wing tips, and then I turned my attention to prepping the aluminum strips (deburr, scotchbrite, clean) but stopped short of spraying them with primer. As "Geek" and I have discussed on the side, at $25/can for the 2K primer you want to make sure you have enough projects to use up a whole can if possible.
A few measly strips of aluminum wouldn't normally justify catalyzing a can but I need to get this done because these wings are headed to the hangar tomorrow. Last Friday I stopped by my local Wesco to have them mix up some of my red which is for my Roberts Bush Gear, so if I sequence things right I won't be wasting the can.