Countersunk Block & Disc Magnets
-Product Highlights
MagnetGlobal’s Countersunk Block and Disc Magnets — also known as counterbore magnets or screw-mount magnets — are precision-machined NdFeB permanent magnets with a pre-drilled, countersunk mounting hole for flush screw installation. Available in both rectangular block and round disc profiles, these are widely used by equipment builders, fixture designers, and industrial OEMs who need a reliable, removable magnetic mounting point rather than an adhesive-backed magnet.
Product Information
Material & Grade Options
Standard grades N35–N52, with high-temperature thermal grades (M, H, SH, UH, EH) available for applications up to 200°C. Nickel-copper-nickel (Ni-Cu-Ni) is the standard coating for general industrial use; Epoxy, Zinc, or PTFE coatings are available for higher corrosion resistance or chemical exposure.
Typical Dimension Range
| Type | Typical Size Range | Countersink |
|---|---|---|
| Rectangular Block | 10×5×2 mm up to 60×20×10 mm | Single or dual countersunk hole, sized to standard M3–M8 screws |
| Round Disc | Ø10 mm up to Ø60 mm, thickness 2–15 mm | Center countersunk hole, sized to standard M3–M8 screws |
Ranges above reflect common production sizes. Custom dimensions, hole placement, and screw sizing are available — send us your drawing or required dimensions for a quote.
Key Advantages
- Flush, Reusable Mounting: The countersunk design lets a standard screw sit flat, avoiding the snag point a surface-mounted magnet creates.
- Machining Precision: Hole placement and depth held to tight tolerances (±0.05 mm) for consistent fit across production batches.
- Corrosion-Resistant Coatings: Coating options selected to match your operating environment, from dry indoor use to washdown or outdoor exposure.
Applications
Jigs and fixtures, point-of-purchase displays, cabinet and door latches, tooling and machine guarding, signage mounting, and general industrial assembly wherever a removable, high-strength magnetic mount is needed.
Contact Us
If you have any needs or questions, please feel free to contact us. Our team is always available — real people, ready to help at every step.
