This round base rare-earth neodymium (NdFeB) cup magnet is made with A3 steel case 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 M8 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.
Please note that holding power of 425 lbs is tested on unpainted horizontal ½” steel plate. Mounting on a vertical or painted surface will reduce holding power by up to 70%.
Recommended Rope: 550 Paracord
The forces have been determined at room temperature on a plate of polished steel (A36) with a thickness of 1/2 inch. The pull force is applied perpendicular to the face of the plate. A maximum deviation of -10% compared to the specified force is possible in exceptional cases, generally the value is exceeded. Depending on the type of application (thickness/condition of base metal, temperatures, and direction of pull), the forces can be influenced enormously. Mounting on vertical surfaces can reduce the pulling force by up to 70%.The indicated values solely serve a basis for comparison under above stated conditions. Please get advice and help from our experts.