Neodymium Disc Magnet - 20mm x 2mm | N42

Product code: 20018C

$5.35 for 1 to 9 items
$3.86buy 10 to 99 itemsand save 27%
$3.59buy 100+ itemsand save 32%

Prices are GST Incl.

Volume pricing available on request

Leading Magnet Supplier

Shipping Worldwide*

30 Day Returns

Same Day Dispatch*

Neodymium Disc Magnet - 20mm x 2mm | N42

Rated 4.7 out of 5
Based on 3 reviews
Product Code 20018C
Pull Force* 2.81 kg
Weight 9 gm
Style Rare Earth Disc magnet
Gauss 627
Grade N42
Coating Nickel (NiCuNi)
Direction of Magnetisation Axially magnetised
Dimensions Height:2mm, Diameter:20mm
*Measured against up to 10mm mild steel.

Magnetic Product Description:

This rare earth disc has a diameter of 20mm and a height of 2mm. It has a pull force of 1.1kg. It is identified by the AMF magnet part number 20018C

Uses for our rare earth disc magnets:

Metal separation, picking up nails & screws, water conditioning, building generators, magnetic stirrers, metal detectors, tool knife holders, holding, stud finders, magnetic therapy, magic tricks, brochure closures.

average rating 4.7 out of 5
Based on 3 reviews
  • 5 Stars
    2 Reviews
  • 4 Stars
    1 Review
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
3 Reviews
Reviewed by Annie A.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Perfect for clothing clasp

Used for magnet brooches, these magnets are the perfect strength and versatility for use in my jewellery.

Was this helpful?
Reviewed by Mal
I recommend this product
Rated 5 out of 5
Review posted

Excellent product

Very well packed and good safety information card included. I'm going to use these inside a guitar to attach an external support so I can swap the support between guitars (hope that makes sense).

I'm copying the internal magnet setup as it's currently too expensive to get the actual part from the USA, so I'm going to make my own.

Was this helpful?
Reviewed by Tom
I recommend this product
Rated 4 out of 5
Review posted

Excellent advice and product

The only reason they didn’t get 5 stars is the freight was expensive. I would recommend that you buy your magnets from AMF.

AMF Reply: Hi Tom, thank you for your feedback! We're currently offering free shipping Australia wide for orders over $30.

Was this helpful?

No FAQ available

NB: Ranges are indicative for product category, please check individual products for specic values within that range.

The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.

Magnets are readily available in Blocks, Discs, Cylinders & Rings. AMF Magnetics specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.

Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.