Neodymium Ring Magnet with Countersunk Hole, 10 pcs, KD11833 KRAFT&DELE
Key information
Availability:Chwilowo niedostępny — zapytaj o termin
Shipping cost:From 3.29 Euro
catalog number:KD11833
Availability:
EAN code:5903957010137
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:0,04 kg
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Neodymium Ring Magnets with Countersunk Hole 14x3 mm — pack of 10 (KD11833)
Ring magnets made from a neodymium-iron-boron alloy (NdFeB) in a cylindrical format with a central countersunk hole. Designed for permanent mounting with screws or countersunk head screws, with no need for additional brackets or adhesive. The pack contains 10 pieces.
Features of the KD11833 ring magnets
Countersunk hole for countersunk head screws
The 4 mm hole has a countersink matched to a countersunk screw head (countersink diameter 8 mm). This means the screw head sits inside the magnet and does not protrude above its surface — important wherever a component has to sit flat against the mounting surface.
Magnetic on both faces — two poles
Magnetisation runs through the height of the magnet, which means one pole (N) is on the top face and the other (S) on the bottom face. Both surfaces are magnetically active, so the magnet will attract from either side.
Nickel coating — protection against corrosion
Neodymium alloy is prone to oxidation, so the magnets are given a layer of nickel plating (Ni-Cu-Ni). The coating protects the core against moisture and mechanical damage, extending the life of the component in service.
Compact size — space-saving mounting
The ratio of magnetic strength to size in neodymium magnets is far higher than in ferrite magnets. The 14x3 mm format provides secure holding in places where a larger magnet or a mechanical fastener would not fit.
Technical specification
| Model | KD11833 |
| Type | Neodymium ring magnet (NdFeB) |
| Outer diameter | 14 mm |
| Inner diameter (hole) | 4 mm |
| Countersink diameter for screw | 8 mm |
| Height | 3 mm |
| Magnetisation direction | Through the height (axial) |
| Protective coating | Nickel (Ni-Cu-Ni) |
| Set weight | 0.04 kg |
| Quantity | 10 pieces |
| Manufacturer | Kraft&Dele |
Applications
Ring magnets with a countersunk hole are ideal wherever a permanent, removable fixing with a screw is required and there is no need to drill additional holes for a bracket. Typical applications:
- Fixing panels, covers and lids in furniture and fitted units
- Latch systems in tool boxes and cases
- Mounting decorative elements and display boards
- Building jigs and teaching aids
- Electronics and robotics projects requiring small precision magnets
- Fixing labels, holders and guides in workshops
- Prototyping equipment with quick-release components
- Craft and model making — removable joints with no visible fasteners
Choosing a screw for the countersunk hole
The bore is 4 mm in diameter, which corresponds to an M4 screw. The 8 mm countersink is sized for countersunk heads (hex socket countersunk head screws to DIN 7991 / ISO 10642). Before assembly, make sure the depth of the countersink in the magnet matches the height of the screw head you are using — a screw that is too long, or a countersink angle that does not match, may prevent the head from sitting fully flush.
Notes on handling neodymium magnets
Neodymium magnets are mechanically brittle — an impact or a drop can cause chipping or cracking. Do not allow two magnets to snap together suddenly. Store magnets away from magnetic cards, watches, pacemakers and data media sensitive to magnetic fields. The maximum operating temperature of NdFeB alloys is usually 80°C (unless a specific temperature grade is stated).
Commercial information
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