In order to raise -- and tighten -- a volleyball net every evening, we've attached a winch to one of the poles. The attachment is by two bolts going into the existing threaded holes in the pole.
It works, but the bolts aren't thick and, because the winch goes side-to-side a little, when the net is raised or taken down, I am afraid, they might snap eventually.
As you can see in the picture, the implement has two other holes -- plastic zip-ties are running through them now -- which could be used with some sort of U-bolt. Except a straight U-bolt will not work, because the pole's diameter is 3″, whereas the distance between holes is under 2″.
Hence my question about some sort of Ω-bolt (or Ʊ-bolt?) -- which would "hug" the 3-inch pole, but with the threaded ends going into the holes available? Do such things exist -- and, if so, what are they called?
Any other suggestions? I thought of using steel hose-clamps -- but they all tend to be wider, than our holes. And not as hard as a bolt would be, anyway -- just a little better than the plastic zip-ties...
