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1/2 x 1/8 Inch Neodymium Rare Earth Countersunk Ring Magnets N42 (20 Pack)

5.7 lbs Pull Force

1/2 x 1/8 Inch Neodymium Rare Earth Countersunk Ring Magnets N42 (20 Pack)

$14.99
  • $ 13.99 USD



Buy More and Save up to 30%
Quantity of Packs Price per Pack Discount
Buy 2 $13.29/set 5% Off
Buy 3 $12.59/set 10% Off
Buy 5 $11.89/set 15% Off
Buy 10 $11.19/set 20% Off
Buy 25 $10.49/set 25% Off
Buy 50 $9.79/set 30% Off
Need more than 50 sets? Email us for a quote.



Magnet Specifications

Size : 0.50 x 0.125 Inch (Outer Diameter x Inner Diameter x Thickness)
Metric Size : 12.7 x 3.175 mm (Outer Diameter x Inner Diameter x Thickness)
Countersunk Hole Size : 0.25 x 0.125 Inches at 90°
Screw Size : #4
Material Grade : N42
Pull Force : 5.7 lbs
Coating : Nickel-Copper-Nickel (Ni-Cu-Ni)
Magnetization Direction : Axially - Pair
Magnet Material : Sintered Neodymium (NdFeb)
Tolerance : +/- 0.004 Inches
Maximum Operating Temperature : 80°C / 176°F
Flux Density : 13,300 Gauss
Part Number : M12X18X18CSDISCN42-20PK
Quantity Included : 20 Countersunk Ring Magnets


Sold in Matched Pairs
Each set of countersunk ring magnets includes 10pcs with the countersunk hole on the north pole, and 10pcs with the countersunk hole on the south pole. This allows you to pair them together to create magnetic latches, fasteners, and other closure mechanisms. Both the north and south poles will be attracted and attach to anything metal.

If you need the magnets in a different configuration, please contact us.


Drill Torque Information
It is very easy to overtighten and break/crack countersunk neodymium magnets when screwing them in place. We recommend hand tightening when possible. If using a drill, start with a low torque setting and work your way up.


Customer Reviews

Based on 26 reviews
92%
(24)
4%
(1)
4%
(1)
0%
(0)
0%
(0)
J
Jeffrey S. (Seattle, United States)
Good products, great service

I’m a Woodturner making wooden boxes - like salt vaults - that have sliding lids. Magnets are inset below the lid surface and plugged with a thin laver of wood. The magnets need enough strength to hold the lid closed, but easily opened with one hand. After all - these are used when cooking - so they must be accessible using only one hand. I don’t know about anyone else, but when I need a pinch of salt I’m typically holding something in my other hand (lid or spoon). Magnets are perfect and the ‘pull’ can be adjusted by varying the thickness of the plug covering the magnets. These magnets have been remarkably consistent regardless of the sizes I’ve used so far.
They also arrive on time at a price that seems very reasonable.

G
George K. (Gibsonia, United States)
Hold on.

Had an enjoying vent fan front that kept popping off. Did not want to permanently attach it to the wall. some Glue, washers and Magnets solved this problem very well and there are no holes in the wall.

A
Anthony P. (Beaverton, United States)
Magnets

They worked as advertised.

M
Mark

Strong magnets! Brittle though. They even work once they get wet! 😆

M
Mark

Good product! Strong magnets!