Neodymium Ring Magnet – 20mm (OD) x 12mm (ID) x 5mm (H) | N38

This Neodymium Ring Magnet (20mm outer diameter x 12mm inner diameter x 5mm thick) is manufactured from high-performance Grade N38 rare earth material, delivering exceptional magnetic strength in a compact form. Its ring design makes it ideal for applications requiring secure fastening, alignment, or rotational movement around a shaft or bolt.
This magnet is identified by product code R-OD20H5ID12-N38.

Engineers, manufacturers, and hobbyists value these magnets for their high pull strength, durability, and resistance to demagnetisation, ensuring reliable performance across industrial, commercial, and DIY projects. With a nickel-copper-nickel coating, the surface is smooth, corrosion-resistant, and designed for long-term use. Key Features:

Dimensions: 20mm (OD) x 12mm (ID) x 5mm (thickness)
- Pull Force: 5.43 kg

Material: Neodymium Iron Boron (NdFeB), Grade N38

Shape: Ring magnet – perfect for positioning on shafts, screws, or rods

Coating: Nickel-Copper-Nickel triple layer for durability and corrosion resistance

Applications: Motors, sensors, scientific experiments, fastening systems, craft projects, and general engineering

As one of the strongest magnets available, neodymium ring magnets are trusted for demanding tasks where reliability and power are critical. This particular size balances strong holding power with versatility, making it suitable for both industrial use and creative applications.