Magnet Expert® 20mm dia x 10mm thick N35SH Neodymium 11.2kg Pull ( High Temp ) Pack of 20

20mm diameter x 10mm thick Each magnet's north and south pole are on opposite 20mm diameter faces Each magnet can support a steel weight of up to 11.2kg vertically from the magnetic face when in flush contact with a mild steel surface of equal thickness 150 degrees Celsius maximum operating temperature Coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth finish