25mm dia x 8mm thick x M5 stud N42 Neodymium Pot Magnet - 20kg Pull

• 25mm diameter x 8mm thick with a M5 threaded stud for fixing
• +/-0.1mm tolerance
• Each magnet is only magnetic on the flat face
• Each magnet can support 20kg pull vertically from the magnetic face when in flush contact with a mild steel surface of equal thickness
• Coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth finish

Neodymium pot magnets are made of a powerful Neodymium magnet sunken in to a steel shell meaning that the north pole is on the centre of the magnetic face and the south pole is on the outer edge around it. The steel pot increases the adhesive force of the magnets giving them an incredible hold for their size. An added advantage of pot magnets is that they are resistant to chipping or cracking following constant impact with a steel surface. These magnets have an M5 threaded stud on the non-magnetic face; pot magnets are also available with countersinks and counter-bored holes.