N42 Neodymium Magnet - 5mm x 2mm x 0.5mm Thick - Pack of 50

High Grade N42 (NdFeB) Neodymium Magnet. These thin rectangular Neodymium magnets are axially magn...

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OnBuy.comMagnet Expert 5 X 2 X 0.5Mm Thick N42 Neodymium Magnet - 0.1Kg Pull ( Pack Of 50 ) 5060185929836
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B&Q - N42 Neodymium Magnet For ArtsCraftsModel MakingDiy And Hobbies5mm X 2mm X 0.5mm Thick0.1Kg PullPack Of 50
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Product Information

Full details

This N42 Neodymium Magnet pack of 50 is ideal for hobbyists, crafters, and small-scale manufacturers who need strong, compact magnetic solutions. Its key benefit is providing a high pull force (0.1kg) in a very small, corrosion-resistant package. A potential caveat is its small size, which requires careful handling and may not be suitable for heavy-duty industrial applications.

All features

Model Part NumberMOD11-50
BrandB&Q

Extended Product Information

FAQs

What does 'N42' mean?

N42 refers to the grade of the Neodymium magnet, indicating its magnetic strength. Higher numbers generally signify a stronger magnet for its size.

Can these magnets be glued?

Yes, these magnets can be successfully attached using strong adhesives such as super glue (cyanoacrylate) or epoxy, provided the surfaces are clean and suitable for bonding.

Are these magnets waterproof?

While the triple nickel-copper-nickel coating provides corrosion resistance, they are not designed for prolonged submersion in water. They should be kept dry and wiped clean if they become damp.

What is the maximum operating temperature?

While exact limits depend on specific conditions, Neodymium magnets generally perform best below 80°C (176°F). Higher temperatures can lead to a temporary or permanent loss of magnetism.

How should I store a large number of these magnets?

Store them in their original packaging or separated by non-magnetic material to prevent them from attracting each other. Keep them in a cool, dry place away from sensitive electronics.

Can I use these magnets for attaching things to a refrigerator?

Yes, if the refrigerator door is made of mild steel, these magnets can be used to hold lightweight items like notes or photos. However, their small size means they will only hold very light objects.

Are these magnets safe for children?

No, these magnets are not toys and should be kept out of reach of children. Small magnets can be a choking hazard and dangerous if swallowed, especially if multiple magnets are ingested.

Troubleshooting

Magnet seems weak or not holding 0.1kg

Ensure the magnet is in full, flush contact with a clean, flat mild steel surface. Surface irregularities or non-ferrous materials will significantly reduce holding power. Verify the item being held is also mild steel.

Magnet chipped or broken

Neodymium magnets are brittle. Avoid snapping them together forcefully or dropping them. If a small chip occurs, the magnetic strength will likely be minimally affected, but handle with increased care.

Magnets sticking together uncontrollably

Handle one magnet at a time and keep them separated by a non-magnetic material (like cardboard or plastic) when not in use. Store them in the provided packaging or with dividers.

Pros and Cons

Pros

  • Exceptional strength-to-size ratio
  • Durable and corrosion-resistant coating
  • Resistant to demagnetisation
  • Versatile for creative and engineering applications
  • Precise dimensions for detailed work

Cons

  • Low individual pull force (0.1kg) limits heavy-duty use
  • Small size can be challenging to handle or affix
  • Neodymium magnets can be brittle and chip if mishandled
  • Requires careful storage to avoid strong attraction to other magnetic materials
  • Not suitable for environments with extreme temperatures

Setup, Compatibility & Care Instructions

Setup:

These magnets are ready to use directly from the pack. Due to their small size and strong magnetic force, handle them with care. Avoid letting them snap together forcefully, as this can cause chipping or breakage.

Compatibility:

These magnets are compatible with any ferrous metal (iron, nickel, cobalt) surfaces. For optimal performance, ensure the steel surface is clean and flat. They can be affixed using strong adhesives suitable for small parts, or by embedding them within materials like resin or plastic.

Care:

  • Cleaning: Wipe with a soft, dry cloth. If necessary, use a slightly damp cloth, but ensure the magnet is thoroughly dried afterward to prevent corrosion, despite the protective coating.
  • Storage: Store in a cool, dry place, away from electronic devices, magnetic media, and other magnets. It is recommended to store them separated by non-magnetic materials or within their original packaging to prevent them from clumping together.
  • Handling: Always handle with care. Avoid dropping or subjecting them to impact. Keep away from children and pacemakers.

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