50mm x 12mm x 4mm x (4mm x 4mm Double Hole) Block Countersunk Epoxy Neodymium Magnets N52 (Pull 10.75KG)


These high-powered 50mm x 12mm x 4mm x (4mm x 4mm Double Hole) Neodymium Countersunk Magnets are very powerful and versatile. Perfect for drilling or fixing into place due to their countersunk hole, they are commonly used for DIY, crafts, woodworking, furniture making, manufacturing and science experiments. 

They are protected by an epoxy coating which has excellent resistance to corrosion in wet, humid and salty environments.

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Product Description

These high-powered 50mm x 12mm x 4mm x (4mm x 4mm Double Hole) Neodymium magnets have two countersunk holes that allow them to be drilled or fit into place. They are incredibly strong and commonly used in DIY, crafts, furniture design, fixings, kitchen design, lock mechanisms and science experiments. These neodymium magnets have an epoxy coating which is one of the most durable forms of coating available. Epoxy magnets do not corrode like traditional Ni-Cu-Ni coated magnets and are perfect for wet humid and salty environments. These magnets are designed with two holes that allow them to be easily fixed and drilled into surfaces that aren’t magnetic. 

Quality Assurance

Introducing our premium N52-grade 50mm x 12mm x 4mm x (4mm x 4mm Double Hole) Block Neodymium Countersunk magnets, meticulously crafted to meet your diverse needs with unparalleled performance. These magnets boast a triple-layer coating of nickel-copper-nickel (Ni-Cu-Ni), ensuring maximum protection against corrosion, enhancing longevity, and maintaining a pristine appearance.

Our neodymium block countersunk magnets are manufactured to comply with REACH and RoHS standards, meaning they are free from harmful substances and environmentally safe. The Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) regulation governs the production and usage of chemicals, while the Restriction of Hazardous Substances (RoHS) directive restricts the use of specific hazardous materials in electrical and electronic equipment. By adhering to these standards, we guarantee the safety and quality of our products.

The N52 grade indicates that our neodymium magnets possess one of the highest energy products available on the market. This translates to exceptional magnetic strength, allowing them to be utilised effectively in various applications, from motor components and magnetic couplings to mounting and holding fixtures.

We pride ourselves on delivering top-quality products to our customers. We have implemented an extensive quality check programme to ensure that our neodymium magnets pass the highest quality standards. Each magnet undergoes rigorous tests and inspections, providing reliable, powerful magnets that stand the test of time.

Neodymium is a naturally fragile metal that lacks the elasticity commonly found in other metals. Due to their inherent brittleness, handling neodymium magnets with care is crucial. Clashing two neodymium magnets together may cause them to crack or sustain damage. Always exercise caution when using and storing these powerful magnets to ensure optimal performance and longevity. Trust in our premium magnets' quality, performance, and reliability, expertly crafted to meet the most stringent UK and international standards.

Technical Specifications 

  • Length 50mm
  • Width 12mm
  • Thickness 4mm
  • 4mm x 4mm countersunk double hole
  • Neodymium Grade: N52
  • +/-0.1mm tolerance.
  • 10.75KG pull force
  • Epoxy coated
  • 4mm countersunk screws necessary for drilling and fixing

Looking for a different shape or size? Click here to view our full range of countersunk magnets.

Additional information

Weight N/A

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Max Temperature

Countersunk Hole


Pull (KG)






Max Surface Field (Gauss)




Pull Force Range

10KG – 20KG

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