The mount does fit very close to the wall. The wall mount does tilt which allows some room to be had. Also depends a lot on the location of your hdmi ports. If they are located on the side or bottom of tv you should have no issues. If the ports are located on the back with non angled ports it will most likely not work for you.
The box should include a hardware kit with spacers and screws. If you need personalized assistance with this product, please call 800-620-2790 available from 8am to 9pm CT.