Neodymium magnet - Flat Head Bolt, Round Type
Caution
- The product images are representative only. Specifications may vary by part number, including shape and color.
- Due to export restrictions on rare earths in China, orders will be suspended once current stock runs out. Please note that even for large quantity quotations, delivery times may remain undetermined.
Product Description
A rare-earth magnet with the highest magnetic energy among the existing magnets.
[Features]
· Not much cracking or chipping and excellent mechanical strength.
· It is cheaper than a samarium magnet, which is the same rare earth magnet.
· With high magnetic properties, it is possible to produce magnets with strong magnetic force even in small sizes.
· With low temperature characteristics, the usage conditions for standard products are below 80°C.
· Because they are highly prone to rust, all products have undergone surface treatment such as nickel plating.
· All countersunk bolts in the set product are made of stainless steel, so they can be used without being affected by magnetic force.
· Since they have a hex socket head, a hex wrench or similar tool that fits the width across the flats of the hex socket is required.
[Applications]
· Can be used for motors, iron powder removal, sensors, medical equipment, etc.
Product Specification
Magnetic Properties
| Material Name | Residual magnetic flux density | Coercive Force | Coercive Force | Maximum energy product |
|---|---|---|---|---|
| Br | bHc | iHc | (BH) max | |
| T | kA/m | kA/m | kJ/m3 | |
| N-35 | 1.17 to 1.25 | ≥ 859 | ≥ 955 | 263 to 295 |
| N-40 | 1.25 to 1.32 | ≥ 859 | ≥ 955 | 302–334 |
| N-40SH | 1.23–1.32 | ≥ 907 | ≥ 1592 | 287 to 334 |
*The values in the above table are representative values and are not quality guaranteed values.
Physical Properties
| Series Name | Temperature coefficient (Br) | Density | Curie Temperature | Vickers Hardness | Operating temperature* |
|---|---|---|---|---|---|
| %/°C | g/cm3 | ℃ | HV | ℃ | |
| N series | -0.12 | 7.3 to 7.5 | 310 | 500-600 | 80 |
| N-SH series | -0.10 | 7.3 to 7.5 | 310 | 500-600 | 150 |
*In the case where the dimensional ratio of thickness (t) / diameter (D) in a round shape is 0.7
| Magnet thickness | Stainless steel countersunk machine screw (Type 0, Class 3) | Stainless steel hex socket flat head cap screw | |||||
|---|---|---|---|---|---|---|---|
| M1.4 x 0.3 | M2 × 0.4 | M2.5 x 0.45 | M3 x 0.5 | M4 x 0.7 | M5 x 0.8 | M6 x 1.0 | |
| 2 | 6L | 6L | 6L | - | - | - | - |
| 3 | 6L | 6L | 6L | 8L | 10L | - | - |
| 4 | - | - | 8L | 8L | 10L | 12L | 15L |
| 4.2 | - | 6L | - | - | - | - | - |
| 4.5 | - | - | - | 8L | 10L | - | - |
| 4.8 | - | - | - | 8L | 10L | - | - |
| 5 | 6L | 6 L × 1 | 8L | 8L | 10L | 12L | 15L |
| 12 L × 2 | |||||||
| 5.5 | - | - | - | - | - | 12L | - |
| 5.6 | - | - | - | - | - | 12L | - |
| 6 | - | - | - | 10 | - | 12L | 15L |
| 6.2 | - | - | - | - | - | - | 15L |
| 8 | - | - | - | 15L | - | - | - |
| 10 | - | - | - | 15L | 15L | 15L | 15L |
*2, NE660/NE662
[ ! ]If you would like bolts included, please select "M* countersunk + with bolt".
Usage Example
- You can use a countersunk bolt to mount or fix it to other components.
Product Feature Details
- The heat resistant type with improved magnetic force can be used even in high temperature ranges up to around 220°C.
Cautions and Prohibitions
- There is a risk of injury, such as fingers getting pinched, if the magnet adheres to each other, tools, or iron pieces.
- If the magnets are accidentally attracted, fix one magnet and move the other to the side. This method makes it relatively easy to remove.
At this time, if tools are used, the magnet may be cracked or chipped. - Magnets are generally fragile, and neodymium magnets tend to corrode from the damaged surface.
Also, there is a risk of injury from these fragments. - Keep magnets out of reach of children. If you accidentally swallow a magnet, contact your doctor immediately.
- People with metal allergies may experience itching or redness if they come into contact with magnets.
If you experience any of these symptoms, do not touch the magnet. - If the magnet comes into direct contact with water, its components may leach out. Never drink this water.
- Bringing a magnet close to a credit card, cash card, etc., may render it unusable.
- Bringing magnets close to precision equipment such as computers, smartphones, watches, etc., may cause malfunction.
- Placing a magnet close to an electronic medical device such as a cardiac pacemaker may impair its normal operation.
- Demagnetization may occur if the magnet is used outside the operating temperature range.
- Applying a strong impact to the magnet or processing it may demagnetize it.
- Excessive bending of rubber magnets with a thickness of 2 mm or more may cause cracks.