Neodymium Disc 15mm x 5mm with Side Hole 2mm N42
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Neodymium Disc Magnet – 15mm x 5mm with 2mm Side Hole | N42
The Neodymium Disc Magnet – 15mm x 5mm with 2mm Side Hole | N42 is a powerful rare earth disc magnet designed for applications requiring both exceptional magnetic strength and secure mechanical mounting. Manufactured from premium N42 grade neodymium (NdFeB), this high-performance permanent magnet features a precision 2mm side hole, allowing it to be fastened using wire, pins, retaining clips, or custom mounting hardware in applications where conventional mounting methods are unsuitable.
Measuring 15mm in diameter and 5mm thick, this compact neodymium magnet delivers impressive holding power while maintaining a versatile size suitable for industrial, commercial, engineering, and DIY applications. The integrated 2mm side hole provides additional installation flexibility, making it ideal for suspended magnetic assemblies, magnetic latches, specialist fixtures, custom mechanisms, and product development projects.
Finished with a durable nickel (Ni-Cu-Ni) coating, the magnet offers excellent protection against corrosion and everyday wear while maintaining its attractive metallic finish. Compared with ferrite magnets of similar dimensions, N42 neodymium magnets provide significantly greater magnetic strength, allowing for smaller, lighter, and more efficient magnetic assemblies.
Whether you're designing custom equipment, manufacturing specialist products, developing prototypes, or creating innovative magnetic solutions, the 15mm x 5mm Neodymium Disc Magnet with 2mm Side Hole delivers outstanding magnetic performance and versatile mounting options.
Key Features
- Premium N42 grade neodymium rare earth magnet
- 15mm diameter x 5mm thickness
- Precision 2mm side hole for specialised mounting
- Strong magnetic performance for its size
- Durable nickel (Ni-Cu-Ni) plated finish
- Compact disc design
- Permanent magnet requiring no external power source
- Suitable for industrial, commercial, and engineering applications
- Long-lasting magnetic strength
- Ideal for custom magnetic assemblies and product development
Common Applications
- Custom magnetic fixtures
- Product development
- Engineering prototypes
- Magnetic latches
- Suspended magnetic assemblies
- Industrial automation
- Robotics projects
- Workshop tooling
- Educational demonstrations
- Research and testing equipment
Ideal For
- Engineers
- Product designers
- OEM manufacturers
- Industrial automation specialists
- Robotics developers
- Research laboratories
- Electronics manufacturers
- Maintenance technicians
- Educational institutions
- DIY makers
Why Choose a Disc Magnet with a Side Hole?
Unlike standard disc magnets, this model incorporates a precision 2mm side hole, providing additional installation options for applications where adhesives or surface mounting are impractical. The side hole enables secure attachment using wire, retaining pins, or custom hardware, making it ideal for specialist engineering solutions and suspended magnetic systems.
Manufactured from N42 grade neodymium, this magnet delivers exceptional magnetic performance in a compact package, allowing engineers and designers to achieve high holding force without increasing assembly size. The durable nickel coating helps protect the magnet from corrosion and everyday handling, ensuring long service life in most indoor environments.
Its combination of strong magnetic performance, precision manufacturing, and flexible mounting options makes this disc magnet an excellent choice for OEM production, automation equipment, research projects, and custom engineering applications.
Technical Specifications
- Product Type: Neodymium Disc Magnet
- Material: Neodymium (NdFeB)
- Magnet Grade: N42
- Shape: Disc
- Diameter: 15mm
- Thickness: 5mm
- Hole Diameter: 2mm Side Hole
- Magnetisation: Axially Magnetised (through the 5mm thickness)
- Coating: Nickel (Ni-Cu-Ni)
- Reusable: Yes
- Application: Holding, mounting, positioning, fastening, and custom magnetic assemblies
Please Note
Neodymium magnets are extremely powerful for their size and should be handled carefully to avoid pinch injuries or damage caused by sudden attraction to steel objects or other magnets.
The 2mm side hole is designed to provide additional mounting flexibility but should not be subjected to excessive mechanical loads that could crack or damage the magnet. Use appropriate fasteners and avoid overtightening or applying excessive force.
Actual magnetic performance will vary depending on the thickness and type of the mating steel surface, air gap, operating temperature, alignment, and application design.
Keep this product away from pacemakers, medical implants, magnetic storage media, and sensitive electronic devices. Neodymium magnets are brittle and should not be drilled, cut, or machined after manufacture.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.
Range and Tolerance
Magnets are readily available in Blocks, Discs, Cylinders & Rings. We specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.
Magnetic Properties
Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.
