China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Among numerous industrial fixing, positioning, and adsorption solutions, countersunk powerful magnets stand out for their simple yet efficient design. They combine the strong magnetic force of high-performance magnets with a clever structure, offering excellent installation convenience and reliability. Today, this article will introduce this type of magnet in detail.
Screw hole magnets refer to powerful magnets (mainly rare earth ndfeb magnets) with screws designed in the center or on the edge. Through the screw holes, users can directly fix them to other objects or equipment. This design makes the magnets easier and more stable to install, especially suitable for situations that require installation, connection, or assembly.
Most common shapes of magnets with screw holes are circular, square, rectangular, oval, arc-shaped, triangular, and semi-circular.
Related screw hole strong magnet product categories: Arc-shaped countersunk magnets Countersunk magnet ring Rectangular countersunk magnets Square countersunk magnets
Typical applications of strong magnets with screw holes;
Machine manufacturing and fixtures: Magnetic fixtures that can be quickly assembled and disassembled, used for positioning and clamping steel workpieces (such as welding, processing, and inspection).
Automation Equipment: Secure sensors, cylinder brackets, safety doors, movable guards, and other components for easy maintenance and adjustment.
Display and Retail: Securely mount display panels, signs, and lighting fixtures to metal backboards or frames to maintain a clean appearance.
Automotive Industry: Secure interior components, tools, and inspection equipment.
DIY and Home Use: Create tool racks, secure metal items, and creative projects (such as hidden door handles).
Important considerations when using neodymium magnets with screw holes;
Screw selection and torque: Ensure that the screws used are the correct size and type (countersunk or flat head) to match the magnet's countersunk hole. Use the appropriate screwdriver bit for the main torque; excessive torque may cause the brittle neodymium magnet to crack.
Avoid Impact and Collision: Neodymium magnets are hard but brittle. Avoid vigorous impact or dropping from heights during installation and use, as this may cause them to shatter.
Avoid High Temperatures: Neodymium magnets have an upper operating temperature limit (commonly 80°C for N-grade, with higher grades reaching up to 200°C). Exceeding this temperature may result in irreversible loss of magnetic strength.
Screw hole powerful magnets, with their strong magnetic force and convenient installation method, are widely used in various industrial and electronic equipment. If your project requires customized sunk-hole permanent magnets, please contact us for a quote.
Other sample cases;
N52 Strong Countersunk Ring Magnets With Side Hole