N52 Countersunk Neodymium Block Magnet
Brand: Magnet forever
Product origin: china
Delivery time: 30 days
Supply capacity: 100000 pieces/month
N52 NdFeB block magnets with countersunk holes for screw mounting. Custom sizes, hole dimensions, coatings and magnetization options for industrial assemblies.
N52 Countersunk Neodymium Block Magnet
Precision-Machined NdFeB Magnets for Secure Screw Mounting
Custom Dimensions | N35–N52 Grades | Multiple Coatings | OEM/ODM
Product Overview
Our N52 countersunk neodymium block magnets are designed for applications requiring strong magnetic attraction and secure mechanical installation. The integrated countersunk hole allows the magnet to be fixed with a compatible flat-head screw, reducing the need for additional mounting structures.
Manufactured from sintered NdFeB material, these square and rectangular neodymium magnets are available in different magnetic grades, dimensions, hole configurations and protective coatings. Custom production is supported based on technical drawings, samples or assembly requirements.
Countersunk Hole Design for Screw Mounting
The countersunk hole is designed to accommodate a compatible flat-head screw, allowing the magnet to be mechanically secured to a mounting surface. This design helps reduce unwanted movement during assembly and repeated use.
Customized hole diameter and countersink dimensions.
Compatible with specified flat-head screw sizes.
Custom block thickness and external dimensions.
Hole position and edge distance according to drawings.
Note: Screw dimensions, countersink angle and hole depth should be confirmed before production to ensure proper fitting.
Protective Coating Options
Select the surface finish according to humidity, corrosion exposure, appearance and assembly requirements.
Triple-layer metallic coating for general industrial applications.
Metallic surface finish for selected assembly environments.
Protective coating option for applications requiring additional surface protection.
Dark surface finish for specific appearance and environmental requirements.



Industrial Applications
Custom countersunk neodymium magnets are suitable for assemblies requiring both magnetic attraction and screw-fixed installation.
Industrial fixtures and positioning systems.
Machine guards, access panels and equipment enclosures.
Magnetic clamps and removable mounting assemblies.
Automation equipment and mechanical components.
Custom magnetic holders and tool fixtures.
Furniture fittings and cabinet door assemblies.
Manufacturing & Quality Inspection
Each custom magnet specification is reviewed before production. Inspection requirements can be agreed according to the drawing and purchase order.
Incoming material and magnetic grade verification.
Dimension and countersunk hole inspection.
Coating appearance and surface condition checks.
Magnetic performance testing according to agreed specifications.
Final inspection and export packaging.
Material certificates, batch inspection reports and applicable quality-system documentation can be discussed according to project requirements. ISO 9001 or IATF 16949 certification should only be claimed where a valid certificate and applicable production scope are available.
OEM & ODM Customization
We support customized N52 countersunk block magnets for industrial buyers, equipment manufacturers and magnetic assembly suppliers.
Custom length, width and thickness.
Custom countersunk hole diameter and angle.
Multiple magnetic grades and temperature grades.
Customized magnetization direction.
Multiple protective coating options.
Drawing-based production and packaging.


Need Custom Countersunk Neodymium Magnets?
Send us your technical drawing, magnet grade, countersunk hole dimensions and estimated order quantity. We will review your specifications and provide a manufacturing quotation.
Send Your Drawing for a Custom Quote
Custom Sizes | OEM Production | Technical Specification Review
