Ernie, you would have to ask. Not sure. I bought these years ago from a tool catalog, Northern, Harborfreight? Cant remember. I make a lot of my own hardware for my rc boats and the engines like Zenoah marine do run in the rpms similar, if not more, than the planes. I found that heat and vibration will overcome JB weld's strength. So far the aluminum rods, if done right, do a lot better job holding the parts together.

I sometimes just use a clean sand paper instead of the brush, and find that as long as you rough up the surface slightly, and CLEAN it well, the rod flows like water on the joints.