Neodymium Magnets With Countersunk Holes – China OEM Magnets Factory | Fullzen

Short Description:

Neodymium Countersunk Ring Magnets is a functional type of strong magnet that shows a standard straight hole on one end surface, but has an angled countersunk screw hole on the other surface. Neodymium magnets countersunk is usually measured by outside diameter, through hole diameter, major diameter, depth and angle. The angle is generally 90 degrees. There are often projects with magnets in our living environment, which are widely used in handicrafts, jewelry, photos, greeting card displays, and can even be used to make DIY magnet projects and more.

Fullzen as a ndfeb strong magnet factory, We can also supply adhesive neodymium magnets according to your needs. Countersunk neodymium magnets are generally used with countersunk screws, please provide accurate drawings, we can produce magnets according to your needs.

  • Customized logo: Min. order 1000 pieces
  • Customized packaging: Min. order 1000 pieces
  • Graphic customization: Min. order 1000 pieces
  • Material: Strong Neodymium Magnet
  • Grade: N35-N52, N35M-N50M, N33H-N48H, N33SH-N45SH, N28UH-N38UH
  • Coating: Zinc,Nickel,Gold,Sliver etc
  • Shape: Customized
  • Tolerance: Standard tolerances, usually +/-0..05mm
  • Sample: If there is any in stock, we will send it within 7 days. If we don't have it in stock, we'll send it to you within 20 days
  • Application: Industrial Magnet
  • Size: We will offer as your request
  • Direction of Magnetisation: Axially through height
  • Product Detail

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    Neodymium Magnets With Countersunk Holes

    NdFeB countersunk magnets are rare earth permanent magnets with countersunk holes. Many people are unfamiliar with the countersunk hole. In fact, you can understand it as a screw hole. The main purpose of the countersunk hole is to be used with screws to fix the left and right sides, and the size of the countersunk hole should be the same as the size of the screw. Usually, the countersink is parallel to the magnetization direction.

    Using the world's strongest and extremely cost-effective permanent magnets, NdFeB countersunk magnets are ideally suited and highly recommended for many applications in the home and industry, including door locks, securing tools, hanging art on the wall, and more wait! N35, N42, N48, N52 are common grades of NdFeB magnets.


    The magnetization direction is very important for permanent magnets. It determines the working surface of the magnet. You can choose according to your actual usage.

    If using this magnet to attract steel surfaces, simply select the N/S poles parallel to the counterbore.

    When you plan to use these magnets to attract each other, you need to buy the orientation of the counterbore parallel to the half N/S half S/N.

    If you plan to use these countersunk magnets to attract your own magnets, you will need to purchase opposite poles to match them.

    The counterbore holes provide a convenient way to securely attach the magnet to almost any flat surface with matching screws. As such, they are handy organizers with limitless uses at work and at home, such as magnetic door latches, magnetic tool holders, cabinet closures, magnetic lights, and many more loaded applications.

    We sell all grades of neodymium magnets, custom shapes, sizes, and coatings.

    Fast Global Shipping: Meet standard air and sea secure packing, More than 10 years of export experience

    Customized is Available: Please offer a drawing for your special design

    Affordable Price:  Choosing the most suitable quality of products means effective cost savings.

    Magnetic Product Description:

    This neodymium magnetic disc has a diameter of 50mm and a height of 25mm. It has a magnetic flux reading of 4664 Gauss and a pull force of 68.22 kilos. 

    Uses For Our Strong Rare Earth Disc Magnets:

    Strong magnets, like this Rare Earth disc, project a powerful magnetic field that is capable of penetrating solid materials such as timber, glass or plastic. This ability has practical applications for tradespeople and engineers where strong magnets can be used to detect metal or become components in sensitive alarm systems and security locks.


    What is the countersunk magnets definition?

    Countersunk magnets are a type of magnet that features a specially designed hole on one or both sides, known as a "countersink hole." This hole is conical in shape and allows for the insertion of a screw, creating a flush and concealed attachment when the magnet is secured to a surface using the screw. The term "countersunk" refers to the shape of the hole, which allows the screw head to sit flush with the magnet's surface, creating a smooth and neat appearance.

    The countersunk design of these magnets offers practical benefits, especially in applications where aesthetics and functionality are important. The magnets can be easily attached to surfaces using screws, and the countersunk hole allows for a secure and unobtrusive installation. Countersunk magnets are used in various industries and applications, including cabinetry, furniture making, signage, displays, fixtures, and more. They provide a convenient solution for creating hidden closures, fastenings, and attachments while maintaining a clean and professional appearance.

    What are rules about magnets?

    Magnets exhibit various properties and behaviors that follow certain rules based on the principles of magnetism. Here are some important rules and principles about magnets:

    1. Opposite Poles Attract, Like Poles Repel
    2. Magnetic Field Lines
    3. Strength Follows Inverse Square Law
    4. Magnetic Domains
    5. Temporary and Permanent Magnets
    6. Magnetic Field Inside a Magnet
    7. Magnetic Poles Cannot Exist Alone
    8. Electromagnetism
    9. Curie Temperature
    10. Magnetization Process
    Does the size of a magnet matter?

    Yes, the size of a magnet does matter and can significantly influence its magnetic properties and behavior. The size of a magnet plays a role in determining its strength, reach, and interactions with other materials. It's important to note that while larger magnets generally have stronger magnetic fields, the type of magnet material, its grade, and magnetization process also play critical roles in determining the magnet's strength and behavior. When selecting a magnet, consider the specific needs of your application and balance factors like size, strength, and intended use to choose the most appropriate magnet for your requirements.

    Your Custom Custom Neodymium Magnets Project

    Fullzen Magnetics has more than 10 years of experience in the design and manufacture of custom rare earth magnets. Send us a request for quote or contact us today to discuss your project's specialty requirements, and our experienced team of engineers will help you determine the most cost effective way of providing you with what you need.Send us your specifications detailing your custom magnet application.

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