This is produced by the Chinese magnet supplier Courage magnet factory a diameter of 20mm, thickness of 5mm, M5 holes, black appearance is black epoxy coating, we can also provide other thickness, this magnet has a very strong magnetic force, can be widely used in a variety of applications, such as manufacturing, medical equipment, fixture, mold, machinery industry, doors and Windows, etc.
Diameter 20mm thickness 5mm countersunk magnet ring size measurement picture;
The biggest advantage of the epoxy coating of countersunk magnet is to prevent oxidation and corrosion on the surface of the magnet, improve the wear resistance of the magnet, and the price is a little more expensive than galvanized nickel copper nickel.
Countersunk magnet ring is relatively popular in diameter;