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Dangerous Magnets Ltd is your helpful & reputable source for incredibly strong neodymium magnets THAT NEVER WEAKEN WITH AGE.

I am a scrupulously honest trader.

- Keep from young children! If two or more are swallowed they can lethally puncturing gut tissue.
- The material is brittle so it can chip or break if magnets crash together. Eye protection advised.
- Neodymium magnets can pinch skin and cut clothing; larger ones, especially when stacked, can crush fingers.
- For sensitive devices, eg credit cards & pacemakers, keep at a distance where the field is negligible.


Neodymium magnets are about 10 times more powerful than traditional material magnets.

This is a pair of massively powerful disc magnets, 30 mm diameter, 8 mm thick, with a 4.3 mm countersunk hole for convenient attachment. The same pole is countersunk on each.

This magnet IS NOT A TOY!

Pull: These neodymium magnets release at about 18kg form 3.2 mm flat steel. Between two plates of steel, in ideal conditions, the pull is around 38 kg!
Increase power even more by stacking two or more magnets. But beware... the danger increases.

Strength Rating: N45. Most neodymium magnets are made in China, where there are many huge suppliers. I have bought CHEAP N45 magnets from China which were definitely weaker than stated, so I have meticulously selected a supplier who is honest about the grade and quality of these neodymium magnets.

This size is excellent for securely attaching all manner of fixtures to steel.


- Clamp components while adhesive cures.
- Hold panels/fittings/tools to steel walls.
- Industrial fixtures.
- Magnet "fishing".
- Gate closure or to hold a gate open. (For outdoor use they should be sealed from the weather.)
- Retrieving inaccessible steel items.

For my 45+ other sizes of magnet, click "Sellers Other Listings" or search “Dangerousmagnets”. For a list without duplication that takes you to Trademe auctions:
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Farming checklist
  1. Broadband for rural NZ is here. Find out more
  2. Get rural insurance from a specialised rural insurer

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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