This product is a round ferrite magnet with countersunk screw holes. The reason why the countersunk holes are made is because the funnel-shaped shape is more beautiful than vertical holes in terms of aesthetics, and the plane will not protrude after the screws are installed. Secondly, it is designed so that it is very protective and will not cause the magnets to be damaged so easily. From the aesthetic point of view, it not only meets the user's vision, but also meets the user's use from the safety point of view.
Ferrites with countersunk holes, although not as magnetic as neodymium screwhole magnets, are much cheaper, and not easy to rust, high temperature resistant, and can be used with iron cases.
If you have a need for round countersunk magnets, the quality assurance and beautiful price of courage magnet manufacturers in China, welcome to consult us.
Typical drawings of circular countersunk magnets;

Relevant magnet with hole types;
Ferrite grade, sintered ferrite magnetic property parameter table
NdFeB magnet grade, Sintered neodymium magnet performance grade parameter table
Neodymium(Ndfeb) Magnet Material Safety Data Sheet
Sintered Ferrite Material Safety Data Sheet Pdf
Magnetic properties grade parameters of smco rare earth magnets
This ferrite ring magnet is manufactured using high-temperature sintering technology, featuring an outer diameter of 8mm, a 3mm square center hole, and a thickness of 3mm....
To buy round ferrite magnets, welcome to contact Courage permanent magnet manufacturers in China, our company has many sizes of ceramic round, block, arc, hole ferrite magnets, factory direct sales, low price, welcome Inquiries from customers all over the world....
This is a radial 2-pole ferrite rotor magnet, the outer diameter is 9mm, the height is 10.4mm, the inner hole is oval, it has low cost, high temperature resistance, and the maximum surface magnetic field strength is about 1130 Gauss. Welcome to consult the sample and price....
7.4x6x5mm Ferrite Small Block Magnet Introduction,Material: Hard Ferrite (Ceramic),Shape: Block / Rectangle / Bar,Coating: No Coating,Grade (Chinese Stardard): Y30,Operating temperature: -40°C to 250°C,Delivery time: 7-15 days,Magnetization direction: thickness....
The sample is a regular radial magnetized ferrite circular magnet with a diameter of 5mm, a thickness of 2mm, a black surface, and an anisotropic grade. It is magnetized radially and has strong side magnetism, with a surface magnetic field intensity of about 750 Gauss....
This product is a round ferrite magnet with a diameter of 10mm and a thickness of 5mm, produced in China, without any surface treatment, axial magnetization, performance level Y30. Single/double chamfering, spray painting and baking varnish can be customized according to customer requirements. Welcome to inquire about samples and prices....
This is a rectangular block magnet used on the door magnetic alarm. The material is ceramic ferrite. The size is 25mm in length, 6mm in width and thickness. It is magnetized in the length direction, and the strong magnetic surface is 6x6mm....
This is a ferrite bar magnet approximately 6 inches in length, with dimensions of 150×50×10mm. It is made from sintered ferrite material (Y30) and features excellent high-temperature resistance and stable magnetic properties....