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Dangerous Magnets Ltd is your helpful & reputable source for incredibly strong neodymium magnets

- Keep from young children! If two or more are swallowed they can be lethal, by attracting across gut tissue and puncturing it.
- Magnets can pinch skin and cut clothing.
- For sensitive devices (e.g. credit cards, pacemakers, magnetic recording), keep at a distance where the field is negligible.


- This specialised construction consists of a magnet enclosed in a steel “pot”, or "cup". This concentrates the magnetic field to a narrow ring area on the countersunk side of the unit.
- The highly-localised field pulls very well to flat, smooth steel, eg a washer or sheet steel, but also tools.
- Not suitable for pulling from a distance, or for pulling towards another magnet. Use standard magnets for these applications.
- Pull not lost when set into a steel surface.

- Pack or 6. (Extras by arrangement at same per-magnet price)
- Dimensions: 20mm diameter, 7.2mm thick, with 4.3mm countersunk mounting hole that takes a #6 or #8 self-tapping mounting screw.
- Neodymium magnets are about 10 times more powerful than traditional ferrite or ceramic types.
- In ideal situations each magnet has a holding force up to around 7kg. Resistance to sliding is about 1/3 that, depending on the friction characteristics of the surface.
- The finish is durable Nickel Copper/Nickel plating.
- Safe from being chipped (but don't over-tighten mounting screws)
- Unsuitable for motors, etc.

- Securely close doors/cupboards/drawers, especially in boats & caravans. (Magnet pulling to STEEL.)
- Wall holders for tools etc.
- Hold panels & fittings to walls.
- Where stray magnetic fields must be kept to a minimum.
- For retaining strength when sunk into steel.

Quantity discounts possible.

We sell several sizes of mountable magnets. Click "Sellers Other Listings" or search “Dangerousmagnet”. For a list without duplications: Please read the questions and answers for this listing.
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Shipping options

  • Courier. All Fastway Rural Delivery, incl Auck.$12.00
  • Courier. Nationwide - Non Rural Delivery$6.00
  • Pickup, from the Onehunga end of Hillsborough$0.00
  • Additional item (= or higher courier already paid)$0.00
  • PO Boxes, i.e. DON'T! Courier cannot deliver.$50.00
  • Seller allows pick-ups
  • Seller location: Auckland City, Auckland, NZ

Payment options

  • Other options
    Cash, NZ bank deposit

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