Mounting Brackets

I have a pair of M10's and a pair of Monitor 40's that I wish to hang from brackets at the back of my room. Where is it safe to run wood screws into the speaker cabinet to mount on brackets?

Is there anything that would be damaged above the speaker wire terminals on the M10's or between the air port and wire terminals on the Monitor 40's?

I purchased 1" wood screws to go with the brackets. They require 2 screws per speaker.