Buy Neodymium Ring Magnets online with e-Magnets™ Many of the Neodymium Ring Magnets have countersunk holes for ease of fixing with a countersunk screw. Please note that these countersunk Neodymium ring magnets have the magnetic pole on the countersunk face stated. If using a countersunk disc with a central hole magnet (countersunk ring magnet) to attract a piece of mild steel, any magnet polarity can be used but if two countersunk face magnets are being used to attract each other via contact between the countersunk faces, then one magnet must have a South countersunk face and the other magnet must have a North countersunk face (applying the rule of unlike Poles attract). They also have an immense and unbeatable resistance to being demagnetised (they have a higher permeance coefficient than a same-sized disc magnet), making them ideal for repulsion applications as well as attraction applications. The magnets are triple coated (NiCuNi) for maximum protection against corrosion, and the standard manufacturing tolerance is /- 0.1mm on all dimensions. Please get in touch if you need discs with central holes (Neodymium Ring Magnets) of different dimensions and/or specific countersunk requirements.
