This is a P-clip:
It has a round bit which goes round a pipe, and two flanges which come off and present a pair of aligned holes through which you can thread a bolt. Ideal.
One of the flanges comes off the round bit at a tangent, and the other doubles back on itself to come off at a sharp angle. When bolted together, they form a projection which is tangential to the pipe - if you bolted through the flanges to a surface, that the pipe would lie pretty much flat on that surface. Since P-clips are mostly used for mounting pipes to walls, this is, again, ideal.
I have a situation where i want to bolt something to a pipe, but it's not a wall. I actually want to hang something off a pipe. To do this, i need some sort of clip where i can put a bolt through a projection which sticks straight out from the pipe, rather than sticking out at a tangent. Not a P-clip - more of a Q-clip.
(Would a diagram help here?)
Is there such a thing? I have searched for Q-clips, in case that's what they're called, but haven't come up with much.