Countersunk Neodymium Block Magnet 50 x 50 x 25 mm N45, 2 Holes, North Pole

Countersunk Neodymium Block Magnet 50 x 50 x 25 mm N45, 2 Holes, North Pole

The Countersunk Neodymium Block Magnet 50 x 50 x 25 mm (1.97" x 1.97" x 0.98") N45, 2 Holes, North Pole is a neodymium (NdFeB) magnet in grade N45 with a nickel coating (Ni-Cu-Ni). It is a rectangular magnet with two countersunk holes of 5 mm (0.20"), so it can be screwed on flush with countersunk screws. It is magnetised through its 25 mm (0.98") thickness; the countersunk side is the north pole. Combine it with the South Pole version if two magnets have to attract each other face to face. Its size and holding force make it suitable for workshop and industrial tasks such as holding plates, jigs and fixtures, tool holders, magnetic mounts and prototype constructions.

N45 is a high grade of neodymium that gives strong holding force for its size (grades N48 to N52 are stronger still). The holding force is highest when the magnet sits directly on a thick, flat steel plate; it is lower on thin or painted steel, on rough surfaces or with an air gap.

• Dimensions: 50 x 50 x 25 mm (1.97" x 1.97" x 0.98"), magnetised through the 25 mm (0.98") thickness, two countersunk holes of 5 mm (0.20")
• Countersink on the north pole
• Grade N45 neodymium (NdFeB) with nickel coating (Ni-Cu-Ni)
• Maximum operating temperature 80 °C (176 °F)

The nickel coating protects the magnet against corrosion in dry, indoor conditions. For damp or outdoor use, seal or shield the magnet.

Please handle with care: a magnet of this size attracts steel and other magnets from a distance and can cause serious pinching injuries. Separate magnets by sliding them apart, never let them snap together, and wear gloves when handling several at once. Keep away from children, pacemakers and sensitive electronics.