Rubber magnet (white) with external thread, Ø22 mm.

Small but strong neodymium magnet with white rubber coating and external steel thread (M4).

The magnet itself is made of neodymium N42.

Diameter: 2.2 cm.
Height magnet: 0.6 cm.
Total height: 1.25 cm.
Thread size: M4
Strength: approx. 5.9 kg.

You can screw the magnet to other magnets with internal M4 thread, or you can use an M4 nut.

Can be used on glass boards.

We sell the magnets individually, so you can choose exactly the number of magnets you need.

NOTE! The magnets have unidirectional poles - i.e. 2 threaded magnets cannot attract each other directly from the same surface because they repel each other. It is a good idea to use metal as a counter pole instead.

The strength of 5.9 kg. is measured directly on a strong, magnetic steel plate made of pure steel. Distance between magnet and magnetic counterpart (magnet or magnetic surface) weakens the strength. A distance of 2 mm. weakens it by approx. 70%, while a distance of 5 mm. weakens the it by as much as 92%. 

This type of magnet can be used outdoors, but the steel thread can rust over time with permanent outdoor use.

SPECIFICATIONS:
Strength: approx. 5,900 g.
Magnetism: N42
Material: NdFeB
Steel thread: Q235
Surface: Rubber
Magnet type: Neodymium

The rubber magnet withstands wind and weather, which is why it is ideal to use this magnet outdoors. However, you should know that the external thread is not made of stainless steel, which is why it can rust over time if it is not wrapped with something.