This is one of those things you want to know at the beginning of a home renovation, not at the end. I'm adding RJ-45 outlets for wireless internet access points throughout my house. Half way I discovered these gems. I installed a complete electrical box and punched a few spots in the box to facilitate wire routing to the outlet. This process is painful and I am now finding that it is useless. With these mounts, you cut a hole, stick them in the cutout, bend down the two flanges and screw themβ¦