Review on 🧲 MUTUACTOR 2Pack 100lb Anti-Scratch Neodymium Rubber Coated Magnet: Versatile Magnetic Base for Off-Road Vehicle Lighting, LED Working/Signal Lights, Antenna, and More! by Nick Palacio

Bought these for mounting an antenna on a metal roof. The supplied bolts are super short entirely useless unless you are planning to mount a piece of paper to the magnet. I purchased M8 bolts that were longer, a few different lengths and none of them would fit more than one turn into the magnets. Even putting the magnet in a channel lock for grip and a wrench for the bolt the bolt only went in about two rotations making me hesitant to use this for mounting anything.