i used this product to hang a pair of book shelf speakers from the wall in my bed room, i was in a similar situation as yourself, i did not have an issue, the speakers have been on the wall for about 1 1/2 years... The speakers that i hung weigh 14.7lb/ each.. plus the shelf i made adds maybe another 2-5lb.. The M22's weigh just under 2lb more than my speakers, so i would assume that you would have absolutely no problem.

I used the 75lb rated product...


Edited by dakkon (02/29/12 08:25 PM)