Neodymium Countersunk Ring Magnet - OD12.5mm x 6mm C/hole d3/d6 | NORTH
Same Day Dispatch
Order before 1pm to qualify for same day dispatch.
Neodymium Countersunk Ring Magnet – OD12.5mm x 6mm | Countersunk Hole d3/d6 | NORTH
The Neodymium Countersunk Ring Magnet – OD12.5mm x 6mm | Countersunk Hole d3/d6 | NORTH is a compact, high-strength rare earth mounting magnet designed for applications requiring secure screw fixing and exceptional magnetic holding power. Manufactured from premium Neodymium Iron Boron (NdFeB), this countersunk ring magnet features an outside diameter of 12.5mm, an inside hole of 3mm expanding to a 6mm countersink, allowing a standard countersunk screw to sit flush with the magnet surface for a clean, professional installation.
This version features the NORTH pole on the countersunk face, making it ideal for applications where a specific magnetic polarity is required. It is commonly paired with the corresponding SOUTH-pole countersunk magnet to create matching magnetic assemblies, magnetic catches, removable panels, display systems, and precision locating fixtures.
The compact size makes this magnet perfect for cabinetry, shopfitting, signage, engineering, product design, automation, and OEM manufacturing where space is limited but strong magnetic holding force is essential.
Finished with a durable nickel-copper-nickel (Ni-Cu-Ni) coating, the magnet offers excellent protection against corrosion, oxidation, and everyday wear while maintaining a smooth, polished appearance.
Key Features
- Premium rare earth neodymium countersunk ring magnet
- 12.5mm outside diameter
- 6mm thickness
- Countersunk hole: 3mm through-hole with 6mm countersink
- NORTH pole on the countersunk face
- Flush screw mounting for secure installation
- Strong magnetic holding power
- Durable nickel-copper-nickel (Ni-Cu-Ni) coating
- Corrosion-resistant finish
- Long-lasting permanent magnet
Common Applications
- Magnetic cabinet catches
- Cupboard and door closures
- Shopfitting and retail displays
- Exhibition and signage systems
- Furniture manufacturing
- Removable access panels
- Industrial fixtures and jigs
- Robotics and automation
- Engineering prototypes
- OEM equipment manufacturing
Ideal For
- Cabinet makers
- Furniture manufacturers
- Engineers
- Product designers
- Shopfitters
- Sign manufacturers
- Automation specialists
- DIY enthusiasts
Why Choose a Countersunk Neodymium Ring Magnet?
The 12.5mm Countersunk Neodymium Ring Magnet provides a simple yet highly effective method of permanently mounting a powerful magnet using a countersunk screw. Unlike adhesive-mounted magnets, screw fixing provides a secure, long-lasting installation that resists vibration, movement, and repeated use.
The NORTH-pole orientation is particularly valuable in applications requiring matched magnetic polarity, allowing designers and manufacturers to pair this magnet with its corresponding SOUTH version for controlled magnetic attraction and precise assembly.
Its compact size and strong rare earth construction make it an excellent choice for concealed magnetic catches, precision alignment systems, removable covers, display fixtures, and industrial mounting applications.
Technical Specifications
- Material: Neodymium Iron Boron (NdFeB)
- Shape: Countersunk Ring Magnet
- Outside Diameter (OD): 12.5mm
- Thickness: 6mm
- Through Hole Diameter: 3mm
- Countersink Diameter: 6mm
- Pole Orientation: NORTH on countersunk face
- Magnetisation: Axial (through the thickness)
- Coating: Nickel-Copper-Nickel (Ni-Cu-Ni)
- Magnet Type: Permanent Rare Earth Magnet
Please Note
This is a high-strength rare earth magnet and should be handled with care. Strong neodymium magnets can snap together unexpectedly, potentially causing pinch injuries or chipping if allowed to collide.
When installing, tighten screws carefully and avoid overtightening, as excessive force may crack the magnet due to the brittle nature of neodymium. Always use an appropriately sized countersunk screw that sits flush within the countersunk hole.
Holding force is measured under ideal conditions using a clean, flat, thick mild steel surface with full face-to-face contact. Actual holding performance will vary depending on the steel thickness, air gap, mounting arrangement, and surface finish.
Keep away from children, pacemakers, implanted medical devices, sensitive electronic equipment, and magnetic storage media. Do not drill, machine, or strike the magnet, as neodymium magnets are hard but brittle and may fracture if subjected to impact or excessive mechanical stress.
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.
