Hard to say for sure? Could be a camper shell vise clamp?
Retired Naval Aviation
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top beam pipe clamp. mine is a hand tight screw. the one in the link requires a wrench.
what does a top beam clamp do?
im going with top beam clamp but still dont know how it works.
still need a pic of it use.
need that pic to confirm!
Does this help?
I did a search for hanging pipe. Big mistake.
No offense and none taken
of all things........