Round magnet 20x3mm

The round neodymium magnet 20×3 mm is a slim yet powerful permanent magnet designed for applications that require strong magnetic holding force with minimal thickness. Manufactured from high-quality neodymium iron boron (NdFeB) and finished with a protective silver nickel coating, this magnet delivers excellent performance, durability, and corrosion resistance.

With a 20 mm diameter and 3 mm thickness, this disc magnet provides a larger contact surface while maintaining a low-profile design. It is well suited for electronics, signage, access panels, sensor mounting, 3D printing projects, enclosures, and general DIY or workshop use.

The flat, smooth surfaces ensure reliable magnetic contact with steel surfaces, making it ideal for both temporary and semi-permanent fixing applications where space is limited.

Key Features

• High-strength neodymium (NdFeB) permanent magnet

• Large diameter with slim profile

• Strong holding force for low-profile installations

• Silver nickel-plated finish for corrosion resistance

• Precision-machined flat surfaces

Technical Specifications

• Magnet type: Neodymium (NdFeB)

• Shape: Round / Disc

• Diameter: 20 mm

• Thickness: 3 mm

• Colour / finish: Silver (nickel-plated)

• Magnetisation: Axial

Typical Applications

• Electronics and electrical assemblies

• Signage and display mounting

• Enclosures and access panels

• Sensors and positioning applications

• 3D printing and prototyping

• DIY, workshop, and craft projects

Note: Neodymium magnets are very strong for their size. Handle with care and keep away from children, electronic equipment, and magnetic storage media.