Neodymium Countersunk Pot Magnet – D20mm | North/South (One Pair)

Description

The Neodymium Countersunk Pot Magnet – D20mm | North/South (One Pair) is a compact, high-strength rare earth magnetic mounting solution supplied as a matched pair of two 20mm diameter countersunk pot magnets, featuring one North-facing magnet and one South-facing magnet.

Designed for secure magnetic attachment and convenient screw mounting, these neodymium pot magnets combine the magnetic performance of rare earth material with a protective steel housing and a countersunk mounting hole.

Each magnet features a 20mm diameter steel pot housing that helps concentrate the magnetic field towards the exposed working face. This design provides efficient magnetic holding performance when used against a suitable ferromagnetic surface or an appropriately matched opposite-polarity magnet.

The countersunk centre hole allows each magnet to be mechanically secured to a suitable surface using an appropriately sized countersunk screw. When installed correctly, the screw head sits flush with or below the magnet's working surface, helping maintain close contact between the magnetic faces.

This product is supplied as one North/South pair, containing:

• 1 x North-facing Neodymium Countersunk Pot Magnet – 20mm diameter

• 1 x South-facing Neodymium Countersunk Pot Magnet – 20mm diameter

The opposing magnetic polarities allow the two magnets to attract each other face-to-face, making them particularly useful for magnetic closures, cabinet doors, access panels, removable fixtures and custom fastening systems.

Unlike purchasing two magnets with the same working-face polarity, a matched North/South pair is designed for direct magnet-to-magnet attraction when the exposed working faces are brought together.

The compact 20mm diameter makes these magnets suitable for applications where space is limited but a strong magnetic fastening solution is required.

Neodymium magnets, also known as rare earth magnets or NdFeB magnets, are among the strongest commercially available permanent magnets. Their high magnetic energy density allows strong magnetic attraction from relatively small dimensions.

Also known as 20mm countersunk neodymium pot magnets, North South magnetic pairs, countersunk rare earth mounting magnets, magnetic cabinet closure magnets, screw-mounted pot magnets or matched polarity magnetic fasteners, this product provides a practical solution for a wide range of magnetic mounting and fastening applications.

Key Features

• Diameter: 20mm

• Magnet Type: Neodymium Countersunk Pot Magnet

• Quantity Supplied: One Pair (2 Magnets)

• Polarity Configuration: 1 North-Facing + 1 South-Facing

• Material: Neodymium Iron Boron (NdFeB)

• Housing: Steel Pot

• Mounting Style: Countersunk Centre Hole

• Matched North/South magnetic pair

• Opposing working-face polarities for direct attraction

• Compact 20mm diameter

• Strong rare earth magnetic performance

• Steel housing helps direct magnetic flux towards the working face

• Suitable for flush screw mounting

• Useful for magnetic closures and fastening systems

• Suitable for cabinet doors and access panels

• Ideal for removable magnetic fixtures

• Suitable for custom magnetic assemblies

• Reusable magnetic fastening solution

• Permanent magnetic field without electrical power

Common Applications

These 20mm North/South countersunk pot magnets are suitable for a variety of applications, including:

• Magnetic cabinet closures

• Cupboard door catches

• Magnetic access panels

• Removable inspection panels

• Magnetic door catches

• Custom magnetic fastening systems

• Magnetic mounting fixtures

• Furniture manufacturing

• Joinery and cabinetry

• Display mounting

• Removable signage

• Equipment access covers

• Workshop fixtures

• Custom enclosures

• DIY magnetic projects

• Industrial magnetic assemblies

• Magnetic positioning systems

• Prototype development

Application suitability depends on the required holding force, mounting arrangement, operating environment and mechanical loading.

Matched North/South Magnetic Pair

This product is supplied as one matched pair containing two magnets.

What's Included?

The opposite polarities allow the magnets to attract each other when their exposed working faces are aligned.

Why Choose a North/South Pair?

Direct Magnet-to-Magnet Attraction

The North-facing and South-facing working surfaces are designed to attract each other.

Convenient Magnetic Closures

Ideal for applications where two components need to connect magnetically.

Matched Polarity Configuration

Eliminates the need to source individual magnets with opposing working-face polarities.

Reusable Fastening

Allows components to be repeatedly attached and separated.

Compact Installation

The 20mm diameter provides a practical mounting option for smaller assemblies.

Countersunk Centre Hole for Secure Mounting

Each pot magnet features a countersunk mounting hole designed to accommodate a suitable countersunk screw.

This mounting style allows the magnet to be secured to compatible surfaces such as:

• Timber

• Plastic

• Suitable metal structures

• Custom mounting brackets

• Furniture components

• Industrial housings

The countersunk design helps the screw head sit flush with or below the working face when the correct fastener is used.

Benefits of Countersunk Mounting

• Convenient mechanical installation

• Secure attachment to compatible surfaces

• Suitable for custom magnetic assemblies

• Useful for cabinet and furniture fittings

• Low-profile fastening arrangement

• No separate adhesive required for screw-mounted installations

Please Note: The countersunk hole diameter, screw size and magnet thickness have not been supplied. Confirm the appropriate fastener dimensions before installation.

Steel Pot Housing Design

Unlike an exposed neodymium disc magnet, a pot magnet incorporates a steel housing around the magnetic material.

The steel pot helps direct and concentrate magnetic flux towards the exposed working face.

Benefits of Pot Magnet Construction

Concentrated Magnetic Field

The steel housing helps focus magnetic attraction towards the working surface.

Compact Design

Provides useful magnetic performance within a small mounting footprint.

Convenient Installation

The countersunk centre hole allows mechanical attachment to compatible substrates.

Protected Magnet Edges

The housing provides some protection to the enclosed neodymium material.

Versatile Applications

Suitable for closures, fixtures, magnetic mounting and custom fastening systems.

The steel housing does not eliminate the risk of damage to the brittle neodymium magnet.

Magnetic Cabinet and Door Closures

One of the most common applications for matched North/South countersunk pot magnets is creating magnetic closures.

Potential uses include:

• Cabinet doors

• Cupboard doors

• Furniture panels

• Access covers

• Removable inspection panels

• Custom storage enclosures

• Equipment housings

One magnet can be installed on the fixed structure, while the opposing magnet is installed on the moving or removable component.

When the two working faces align, magnetic attraction helps hold the components together.

For best results, ensure the magnets are correctly aligned and the mounting surfaces allow close contact.

Removable Panels and Fixtures

These matched countersunk pot magnets may also be used to create removable magnetic connections.

Potential applications include:

• Removable display panels

• Equipment access covers

• Custom magnetic fixtures

• Inspection panels

• Magnetic mounting systems

• Industrial enclosures

• Prototype assemblies

The North/South configuration provides a convenient solution where two mounted magnetic components must attract one another.

For applications subject to vibration, shock loading or significant mechanical forces, additional retention or safety measures may be required.

Magnetic Holding Performance

The holding performance of these 20mm neodymium countersunk pot magnets depends on several factors, including:

• Magnetic material grade

• Magnet dimensions

• Pot housing design

• Contact surface area

• Alignment between magnets

• Air gaps

• Surface condition

• Load direction

• Operating temperature

• Mounting configuration

When two pot magnets are used face-to-face, the magnetic holding performance may differ from the pull-force rating of a single pot magnet against a thick steel plate.

A specific pull-force rating has not been supplied for this product.

For applications requiring a defined holding force, obtain verified manufacturer data or conduct appropriate testing.

Installation Guide

For best results, follow these general installation steps:

1. Determine the desired mounting positions.

2. Confirm that the North-facing and South-facing magnets will align correctly.

3. Check the countersunk hole dimensions and select suitable fasteners.

4. Mark the mounting positions.

5. Prepare the mounting surfaces.

6. Secure the first magnet using an appropriately sized countersunk screw.

7. Install the second magnet with its working face positioned towards the first magnet.

8. Ensure screw heads do not protrude above the working faces.

9. Test the magnetic attraction and alignment.

10. Confirm that the assembly provides suitable holding performance.

Installation Tips

• Use suitable countersunk screws.

• Avoid overtightening fasteners.

• Keep the magnetic working faces clean.

• Minimise air gaps between magnets.

• Align the magnets carefully.

• Avoid sudden uncontrolled contact.

• Protect the neodymium material from impact.

• Test the completed assembly before regular use.

Important: Do not drill, cut, grind or machine finished neodymium magnets.

Suitable Mounting Surfaces

The countersunk mounting design allows installation onto a variety of compatible substrates using suitable fasteners.

Potential mounting materials include:

• Timber

• Plywood

• MDF

• Plastic

• Metal brackets

• Furniture panels

• Industrial housings

The mounting substrate does not necessarily need to be magnetic because the magnets are mechanically secured using screws.

For magnet-to-magnet fastening applications, the North-facing and South-facing working surfaces provide the magnetic connection.

Technical Specifications

Compliance & Safety

Strong Magnetic Field: Neodymium magnets can attract ferromagnetic objects and other magnets suddenly. Handle carefully.

Pinch Hazard: Keep fingers and skin clear when bringing magnets together.

Brittle Material: Neodymium magnets are brittle and may chip, crack or shatter if subjected to impact.

Fastener Selection: Use suitable countersunk screws and avoid overtightening.

Alignment: Ensure the North-facing and South-facing magnets are correctly positioned before installation.

Children: Keep magnets away from children. Swallowed magnets can cause severe internal injuries and require urgent medical attention.

Medical Devices: Strong magnets may interfere with pacemakers, implanted medical devices and magnetically sensitive equipment. Follow the relevant manufacturer's safety guidance.

Electronic Equipment: Keep magnets away from sensitive electronic equipment and magnetic storage media.

Machining: Do not drill, cut or grind finished neodymium magnets.

Temperature: Excessive heat can permanently reduce magnetic performance. Confirm the operating temperature rating before use in elevated-temperature environments.

Corrosion: Neodymium material can be susceptible to corrosion if inadequately protected. The exact coating has not been specified.

Load-Bearing Applications: Do not use these magnets for overhead lifting, personnel safety or other safety-critical holding applications without appropriate engineering assessment and certification.

Frequently Asked Questions

How many magnets are included?

This product includes two magnets, supplied as one matched North/South pair.

What does North/South mean?

The pair contains one magnet with a North-facing working surface and one with a South-facing working surface. These opposite poles attract when positioned face-to-face.

What is the diameter of each magnet?

Each pot magnet has a diameter of 20mm.

Do the magnets attract each other?

Yes. The North-facing and South-facing working surfaces are designed to attract each other when correctly aligned.

What is a countersunk pot magnet?

A countersunk pot magnet is a permanent magnet housed in a steel pot with a countersunk mounting hole for screw installation.

Can these magnets be used for cabinet doors?

Yes. They may be suitable for magnetic cabinet closures, cupboard doors and furniture fittings, depending on the required holding force.

Can I mount these magnets to timber?

Yes. The countersunk mounting holes allow the magnets to be mechanically secured to suitable timber surfaces using appropriate screws.

Do I need a steel surface for these magnets to work?

No. When used as a matched North/South pair, the magnets can attract each other directly. Their mounting substrates do not need to be magnetic.

What is the pull force of this magnetic pair?

A specific pull-force rating has not been provided. Holding performance depends on alignment, air gaps, mounting conditions and the magnetic design.

Can these magnets be used for removable panels?

Yes. They may be suitable for removable access panels, display panels and custom magnetic fixtures.

Are screws included?

Screw inclusion has not been specified. Confirm the product's supplied components before installation.

Can I use two North-facing magnets together?

Two magnets with North-facing working surfaces will repel when those faces are brought together. For direct face-to-face attraction, use opposite-facing polarities.

Are these magnets suitable for outdoor use?

Outdoor suitability depends on the coating, environmental conditions and mounting arrangement. The exact coating and corrosion resistance have not been specified.

Can these magnets break?

Yes. Neodymium magnets are brittle and may chip, crack or shatter if dropped or allowed to collide with excessive force.

Related Products

Customers considering this 20mm North/South countersunk pot magnet pair may also be interested in:

• Neodymium Countersunk Pot Magnets in Other Sizes

• North/South Neodymium Magnet Pairs

• Neodymium Pot Magnets with Round Holes

• Neodymium Pot Magnets with Male Threads

• Neodymium Pot Magnets with Female Threads

• Rubber-Coated Neodymium Pot Magnets

• Neodymium Disc Magnets

• Neodymium Block Magnets

• Magnetic Cabinet Catches

• Magnetic Mounting Systems

• Magnetic Door Closures

• Industrial Rare Earth Magnets

Please Note

This Neodymium Countersunk Pot Magnet – D20mm | North/South (One Pair) is supplied as two magnets, comprising one North-facing and one South-facing countersunk pot magnet.

Each magnet has a diameter of 20mm and features a steel pot housing with a countersunk mounting hole.

The matched polarity configuration allows the two magnets to attract each other face-to-face when correctly aligned.

The exact magnet thickness, magnetic grade, pull force, surface Gauss, countersunk hole dimensions, coating and maximum operating temperature have not been supplied.

The listed quantity is one pair, containing two magnets in total.

Neodymium magnets are brittle by nature and should be handled carefully to prevent chipping, cracking or shattering.

For applications requiring a specific holding force or mounting configuration, confirm the relevant technical specifications and test the completed assembly under actual operating conditions.