Neodymium Rectangular Pot Magnet with Countersunk Holes – 40mm x 13.5mm x 5mm

The Neodymium Rectangular Pot Magnet with Countersunk Holes – 40mm x 13.5mm x 5mm is a compact, low-profile rare earth mounting magnet designed for secure magnetic holding, fixing and closure applications. Measuring 40mm long x 13.5mm wide x 5mm thick, this rectangular magnetic assembly combines powerful neodymium magnetic material with a protective steel housing and integrated countersunk mounting holes.

The countersunk holes allow the magnet to be mechanically secured to a suitable surface using compatible countersunk screws. Once installed, the magnetic working face can attract suitable ferromagnetic steel surfaces, components or strike plates, making this compact pot magnet ideal for cabinets, access panels, displays, fixtures, furniture, machinery and custom magnetic assemblies.

Its narrow 13.5mm width and slim 5mm profile make this magnet particularly useful where installation space is limited and a compact rectangular magnetic fixing solution is required.

Key Features

• Powerful neodymium rectangular pot magnet
• Dimensions: 40mm x 13.5mm x 5mm
• Compact 40mm length
• Slim 5mm low-profile design
• Narrow 13.5mm width
• Integrated countersunk mounting holes
• Designed for secure mechanical screw fixing
• High-strength neodymium rare earth magnetic system
• Steel housing helps concentrate magnetic performance
• Suitable for industrial, commercial and DIY applications

Common Applications

• Magnetic cabinet catches
• Door and panel closures
• Access panels
• Displays and signage
• Furniture manufacturing
• Fixtures and fittings
• Machinery and equipment
• Retail display systems
• OEM products
• Custom magnetic mounting assemblies

Countersunk Holes for Secure Mechanical Mounting

The integrated countersunk holes provide a practical method for securely fastening the rectangular pot magnet to a compatible substrate.

Using appropriately sized countersunk screws allows the screw heads to sit neatly within the recessed mounting holes, helping maintain the magnet's compact, low-profile installation.

Mechanical fastening is particularly useful where adhesive mounting is unsuitable or where a secure, long-term fixing method is preferred.

Always select fasteners that are appropriate for both the countersunk holes and mounting substrate, and avoid overtightening during installation.

Powerful Neodymium Rare Earth Magnet

Neodymium Iron Boron (NdFeB) is one of the strongest commercially available permanent magnetic materials, providing excellent magnetic performance relative to its size.

This makes the 40mm x 13.5mm x 5mm rectangular pot magnet particularly useful for applications where available mounting space is limited but strong magnetic attraction is still required.

Unlike a standard exposed neodymium block magnet, the magnetic material in this assembly is combined with a steel housing that helps direct magnetic flux towards the working face while also providing additional mechanical protection.

Compact Rectangular Design

The elongated rectangular shape provides a useful alternative to conventional round pot magnets.

At just 40mm long, 13.5mm wide and 5mm thick, this magnet can be incorporated into narrow frames, panels, cabinetry and equipment where larger magnetic assemblies may not fit.

The low-profile format also allows the magnet to remain relatively discreet once installed.

Technical Specifications

• Product Type: Neodymium Rectangular Pot Magnet
• Magnetic Material: Neodymium Rare Earth / NdFeB
• Magnet Type: Permanent Rare Earth Magnetic Assembly
• Shape: Rectangular
• Length: 40mm
• Width: 13.5mm
• Thickness: 5mm
• Mounting Type: Countersunk Holes
• Housing: Steel
• Primary Function: Magnetic holding, fixing and closure
• Typical Applications: Cabinets, panels, displays, furniture, fixtures, machinery and custom assemblies

Magnetic Closures and Holding Applications

When paired with a suitable ferromagnetic steel surface or strike plate, this rectangular neodymium pot magnet can provide a compact magnetic catch or closure system.

Potential applications include:

• Cabinet doors
• Removable panels
• Machinery covers
• Inspection panels
• Equipment enclosures
• Furniture
• Retail displays
• Signage
• Fixtures

The mechanical mounting holes allow the magnet to be securely incorporated into the finished product or assembly.

Getting the Best Magnetic Holding Performance

For maximum holding performance, the magnetic working face should make direct, flat contact with clean and sufficiently thick ferromagnetic steel.

Magnetic strength can be reduced by:

• Paint and protective coatings
• Air gaps
• Thin steel
• Rust, dirt or surface contamination
• Curved or uneven surfaces
• Limited contact area
• Sideways or shear loading
• Peeling forces

Where a pull-force rating is specified separately, it generally represents controlled direct-pull testing under ideal conditions. Real-world holding capacity may be significantly lower depending on the installation.

Please Note

Neodymium pot magnets can produce powerful attraction despite their compact dimensions. Handle carefully and keep fingers clear when bringing the magnet close to steel surfaces or other magnets.

When installing the magnet, use appropriately sized countersunk fasteners and do not overtighten the screws. Neodymium magnetic material is hard but brittle and can crack or fracture when subjected to excessive mechanical pressure.

Always ensure the magnet, screws, substrate and mating steel surface are appropriate for the intended application.

This product should not be used as certified lifting equipment, an overhead suspension point or a safety-critical holding device unless the complete installation has been appropriately engineered and tested.

Keep strong neodymium magnets away from children, pacemakers, medical implants, magnetic storage media and sensitive electronic equipment.