Description
Reviews
| Brand | - |
| Category | Electronic Components Market / Other Components |
| Origin | - |
| Material Grade | Neodymium Iron Boron (NdFeB) N48 |
| Outer Diameter | 25 mm |
| Inner Diameter | 6 mm |
| Thickness | 6 mm |
| Hole Type | Countersunk Screw Hole |
| Coating | Triple Layer Ni-Cu-Ni |
| Maximum Operating Temp | 80°C (176°F) |
| Pull Force Estimate | Approx. 12 kg (26 lbs) on steel plate |
| Tolerance | +/- 0.1 mm |
| Application | Industrial mounting, sensors, and DIY projects |
Anonymous
Mar 26, 2026
Rating: 5/5
Excellent value
Compared to local hardware stores, the price here is much better for this grade of magnet. The finish is smooth and shiny. Will buy again for future workshop needs.
Anonymous
Mar 22, 2026
Rating: 5/5
Fast shipping and well packaged
Arrived quickly and were separated by foam spacers so they didn't snap together and break during transit. Very professional packaging for such strong magnets.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for my robotics project
I needed precise dimensions for a custom robot joint, and these fit perfectly. The 6mm hole aligns well with standard M5 screws. Highly recommend for engineering prototypes.
Anonymous
Mar 12, 2026
Rating: 4/5
Good quality, careful with plating
The magnetic strength is exactly as described for N48 grade. Just be careful when screwing them in; if you overtighten, you might chip the nickel coating. Otherwise, great product.
Anonymous
Mar 11, 2026
Rating: 3/5
Strong but brittle
One of the magnets cracked when I accidentally dropped it on the concrete floor. I know neodymium is brittle, but just a heads up to handle with care. The remaining ones work great.
Anonymous
Mar 04, 2026
Rating: 5/5
Incredibly strong for the size
These magnets are surprisingly powerful. I used them to mount a small sensor housing under a metal shelf, and they hold it securely without any slip. The countersunk hole makes installation very clean.
Q: Is the hole threaded or smooth?
A: The hole is a smooth countersink, not threaded. You will need to use a screw that passes through the magnet into the material you are attaching it to.
Q: What size screw fits best in the countersunk hole?
A: The 6mm countersunk hole is designed to accommodate an M5 screw head comfortably, allowing for a flush mount surface.
Q: Can these magnets be used outdoors?
A: While the Ni-Cu-Ni coating offers some corrosion resistance, we recommend sealing or painting them if they will be exposed to rain or high humidity for extended periods.
Q: Are these sold individually or in packs?
A: This listing is for a single unit. However, we offer bulk discounts if you select a higher quantity from the dropdown menu before adding to cart.
Q: Will the magnetic strength degrade over time?
A: No, provided they are not exposed to temperatures above 80°C or subjected to opposing strong magnetic fields, they will retain their magnetism indefinitely.
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