Recently, I found that some Canadian customers are looking for such countersunk magnets. In fact, in addition to Amazon and some local magnet suppliers, you can also choose our Chinese magnet manufacturers, which may be more cost-effective.
Our company is located in Guangdong, China, and can provide you with various properties and grades of countersunk (counterbore) neodymium magnets, ferrite countersunk magnets and samarium cobalt countersunk magnets, including various shapes, you may not have seen them all Oh.
Below are some common types of countersunk magnets to see which one you are looking for.

How do I order this countersunk magnet?
You only need to tell us the magnet material, size, grade (or Gauss), tolerance, magnetization method, purchase quantity, etc. you want, and we will be able to quote and process it for you.
Recently, we have also made several deals with Canadian clients. We look forward to friendly cooperation with you and become your china magnet supplier.
Learn more about our company: https://www.dgcourage.com/about/
Take a look at our more countersunk magnets;
Countersunk Rectangular Magnets
This 1mmx1mm miniature circular magnet has a compact size and a surface magnetic field of approximately 2900 Gauss, making it suitable for precision applications with high requirements for magnet size....
This product is a miniature round magnet, made of rare earth NdFeB magnets, belonging to the ultra-small size magnet series, using N35 grade, the specific size is 1.5mm diameter, 1mm thickness, axial magnetization, surface nickel coating, tolerance ±0.05, such as If you are interested in this small magnet product, you can contact us to customize it for you....
Customers from the United States, the United Kingdom, Australia, Japan, Poland and other customers are looking for ferrite cylindrical magnets. Welcome to contact the Courage magnet manufacturer. Our company is located in Dongguan, China. There are many ready-made sizes and low prices. Like the main picture...
The sample is a small-sized Y35 ferrite magnetic block with a specification of 3 × 1.3 × 4mm, magnetized along the length direction, and a surface magnetic field of about 1300 Gauss....
This is a very small rectangular ferrite block magnet, measuring 2.45 mm in length and 1 mm in both width and height. It is magnetised along its length and is barely noticeable when held in the hand....
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....
U-shaped neodymium magnets are a type of high-performance permanent magnet material with a structure resembling the letter ‘U’. Manufactured from sintered neodymium-iron-boron, they are characterised by high magnetic energy product....
This is a radial 4-pole ring (Hollow cylinder) magnet, the material is bonded NdFeB, with high magnetic performance, the size is 16mm outer diameter, inner hole 5mm, height 20mm, surface gray epoxy treatment, suitable for water pump motor...