This round rare-earth neodymium (NdFeB) cup magnet is made with A3 steel plate and coated with Nickel-Copper-Nickel to be the strongest type of permanent magnet available.
The countersunk hole allows many types of mounting applications including hook, knob, or included stainless steel eyebolt. Screw it into a wall to hold tools, or position and hold lights, signs, and more. This type of magnet is also perfect for magnet fishing and retrieving applications.
