I have a few from summitsource.com (part COS106) that I've used for various things. Works fine for satellite and OTA signals. Works fine on my 24v power block between it and the cable connecting to the DC/PWR port on my SWM-16s, so I know they can carry voltage too. The insertion loss is well under a db - much better than the loss you'd have from coax that's been bent much too tightly or a wall connector under enough stress that its breaking.
If you want avoid jimmie57's concern about "2 places to come loose instead of one", I've seen right angle RG6 compression connectors. Perhaps there are even some angled connectors you can get for your wall plate if you hunt around enough.
Edited by slice1900, 25 May 2013 - 12:05 AM.
SL5, 2xSWM16, 16 H20-100, 1 H20-600, 7 H24-700/AM21, 2 H10-200