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40mm Dia x 10mm with 4.3mm hole | Pack of 1

Regular price $33.00

Tax included.

Product Details

Size: 40mm diameter x 10mm thick with 4.3mm countersunk hole for mounting

Quantity: 1

Grade: N45 Neodymium

Pole location:  Poles on flat faces

Pull/Push: About 30kg to a similar magnet or to 4.4mm sheet steel. 52kg for stacked pair. Between two plates, 63kg! The more pull, the more the danger! Resistance to sliding is about 1/3 of these figures. 


  • If the magnet is too strong, glue 1 or 2 mm thickness of a non-magnetic material to the flat, pole surface
  • About 10 times more pull than the traditional, grey, ferrite type
  • This type of magnet never weakens with age
  • Triple plated for durability: Ni/Cu/Ni

Potential Uses:

  • Excellent for securely attaching all manner of fixtures to plate steel, or for a heavy gate. Consider "pot" type especially if the steel is thinner. They are cheaper.
  • Retrieving or "fishing" for lost steel items


  • Not for kids! Two or more, if swallowed, can lethally puncture gut tissue.
  • They can pinch skin and cut clothing.
  • The material is brittle. It can chip or break during collisions. Eye protection advised.
  • For credit cards, pacemakers etc, keep at a distance where the field is negligible.


  • Dangerousmagnets is your helpful & reputable source for amazingly strong Neodymium Magnets. (Also called Rare Earth Magnets.)
  • Genuine NZ trader in Auckland, trading with scrupulous honesty, specialising in Neodymium Magnets since 2009.
  • Unequalled 5000+ positive feedback for magnet sales in Trademe.
  • Over 45 sizes.
  • I don't sell China's cheapest neodymium magnets. I have found them substandard and with fake "certification".
  • Qualified mechatronics engineer with practical experience.
  • I am happy to help you find the best solution for your application.
  • Visits welcome by appointment. Bring your application to investigate solutions.
  • You're welcome to change your order to 2 half-packs &/or add half-packs. Just ask by email.
  • Combine shipping.
  • Quantity discounts. Please ask by email.
  • Send purchase orders to

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