Kris,
Now I see why you don’t like glue in machine bolts without hangers (marg River positings)…OK, best hanger to use is the PFH 90degree. The hole is slightly larger than in the RP hanger, so it will fit on everything EXCEPT some brands of 10mm machine bolts. Anyone contemplating using 10mm glue ins should test these out with a hanger and if necessary grind down the corners (easy on a $30 rotary grinder). All 10mm bolts are not the same and the shaft diamaters and heads actually vary slightly. Gorget 45degree hangers, they are fiddly to place and fiddlier to clip.
Removing a hanger from bolt with carabiner clipped in: this is possible only with 3/8″ machine bolts which can have very small heads. They are loved by the carrot bolters as they are cheapest, less than $1 a piece, in fact 50c even if you buy many. That’s how cheap your life is, mate. So in this day and age this bolt should never be used for anything. Doing this with a 10mm bolt is impossible with a hanger of any sort, unless you have a very deformed hanger.
Hope it helps.