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30mm Dia x 8mm with 4.3mm hole | Pack of 2

Regular price $34.00

Tax included.

Product Details

Size: 30mm diameter x 8mm thick with 4.3mm countersunk hole for mounting

Quantity: 2

Grade: N45 Neodymium

Pole location:  Poles on flat faces with same polarity on countersunk side of each magnet

Pull/Push: About 18kg to 3.2mm sheet steel. 30kg for stacked pair. Resistance to sliding is about 1/3 that.


  • Consider "Pot" type in various sizes, especially if the steel is thin - they are cheaper
  • 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:

  • Attaching items eg panels/fittings/tools firmly to steel
  • Heavy door/gate closures onto steel
  • Also to hold gates open
  • Picking up nails off factory floors
  • Retrieving lost steel items
  • "Fishing" for 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.
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