Neodymium Ring Magnet Ø20 x Ø9.8 x 5 mm N35 NiCuNi with drill/countersunk hole North pole

Neodymium ring magnet Ø20 x Ø9.8 x 5 mm, grade N35, NiCuNi coating, countersunk hole. Holding force approx. 2.1 kg. Version: North pole.

Specifications

• Dimensions: Ø20 x Ø9.8 x 5 mm (outer diameter x hole/countersink diameter x height)
• Grade: N35 (neodymium)
• Coating: NiCuNi (nickel-copper-nickel)
• Mounting: countersunk hole of Ø9.8 mm, tapering to Ø5.1 mm. Suitable for a 5 mm screw with a flat countersunk head (metric screw, wood screw or sheet metal screw).
• Magnetization: axial (poles on the flat sides)
• Pole: North pole
• Holding force: approx. 2.1 kg
• Maximum temperature: 80 °C

What do you use this magnet for?

Suitable for light closures, displays, interior construction and model making. With the countersunk hole, you screw the magnet flush into wood, plastic or metal, for example for doors, displays, signs and closures. Do not tighten the screw too much: neodymium is brittle and can crack. This is the North pole version; there is also a version with the opposite pole, so you can make magnets attract or repel each other. Which ring magnet should you choose?

The holding force is measured under ideal conditions on a flat steel plate; in practice, the actual holding force is lower. Read how holding force is determined.

Frequently asked questions

Which screw fits in it?

A 5 mm screw with a flat countersunk head, such as a wood screw, metric screw or sheet metal screw. Do not tighten it too much: neodymium is brittle and can crack.

North pole or south pole: which one do I need?

In this version, the north pole is on the side of the countersunk hole. If you want two magnets to click together, for example in a door and the frame, also take the south pole version. Two north pole versions repel each other.

Can it also be done with one magnet?

Yes: screw a steel ring Ø20 x Ø9.8 x 5 mm as a counterpart on the other side. Then the pole does not matter.

Can I use it outside or in a damp room?

The NiCuNi coating is intended for dry indoor use. For moisture and outdoor use, the epoxy version is a better choice.

Can I order this ring magnet in larger quantities for furniture or interior construction?

Yes. Order north and south in equal quantities, so that each door has a matching pair. From larger quantities, volume discounts apply, and interior builders can order on account or request a quote for a project. Business ordering.

Delivery and returns

Ordered and paid for on working days before 16:00, it will be shipped the same working day if in stock. Free shipping within the Netherlands from €45. Consumers have a 30-day cooling-off period.

Safe use

Magnets are not toys and should be kept out of reach of children. Keep strong magnets away from pacemakers, electronics and bank cards.