Mounting magnets are permanent magnet encased in a steel shell, which is sometimes called a pot, hence it also has the name “pot magnet” and “cup magnet”. Sometimes they are coated with rubber.
Mounting magnets for use in hanging and wall mounting applications. These powerful neodymium magnets can hold in magnet to magnet applications as well as magnet to steel. Mounting magnets work best with rubber housings which protect the magnet and the surface it is attaching to from wear, the rubber also has a higher coefficient of friction to help the magnet resist sliding when attached to wall.
ALB Materials Inc supplies sevral series of mounting magnets with high quality and competitive price.