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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)

$16.79
  • $ 16.79 USD



Buy More and Save up to 30%
Quantity of Packs Price per Pack Discount
Buy 2 $15.95/pack 5% Off
Buy 3 $15.11/pack 10% Off
Buy 5 $14.27/pack 15% Off
Buy 10 $13.43/pack 20% Off
Buy 25 $12.59/pack 25% Off
Buy 50 $11.75/pack 30% Off
Need more than 50 sets? Email us for a quote.



Magnet Specifications

Size : 0.50 x 0.125 Inch (Outer Diameter x Thickness)
Metric Size : 12.7 x 3.175 mm (Outer Diameter x Thickness)
Countersunk Hole Size : 0.242 x 0.136 Inches at 82°
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

Produced in an ISO 9001 Facility
Manufactured to Meet RoHS & REACH Standards


Sold in Matched North/South 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 ferromagnetic materials.

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


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 37 reviews
92%
(34)
3%
(1)
3%
(1)
3%
(1)
0%
(0)
J
Jay R. (Orlando, United States)
They are perfect!

Creating some 3d printed items and looking for an option to have them be screwed in. These work great!

D
Doug (Griffin, United States)
Neodymium Rare Earth Countersunk Ring Magnets N42

I used the magnets to build tools for metalworking machines. The magnets hold fixtures in place until materials are otherwise clamped. Total Element magnets have the countersink on opposing polls, which is very handy.

T
Ted (Anchorage, United States)
Great Magnets for Construction Purposes!

We use these for manifold covers for easy removal and they work great.

R
RICHARD S. (Pacifica, United States)
Just what I needed

First off, the ordering, packaging and shipping processes are excellent. All of my items arrived promptly and in excellent condition. As for the purpose, I am using them to hold plywood covers to the back of a model railroad layout. They can be removed for access to the tunnels, so I needed something that would not easily slide off. These magnets are surprisingly powerful for their size and are very brittle, so removing them from the metal washers requires 'sliding' and not 'pulling'. As of this writing, I have four panels in place and secure, and removing them is quite easy if one understands the nature of neodymium magnets. Attaching the magnets and washers was via wood screws driven gently by hand. As I said, the magnets are very brittle, meaning power tools should be avoided.

Overall, an excellent product at a good price with A+ service.

T
Theodore W. (Anchorage, United States)
Fantastic for Manifold Covers

These magnets have worked fantastically as fasteners for manifold covers on our residential projects.


Similar Part Numbers: R822CS-P-N52, R822CS-N-N52