Block Neodymium Magnet With M3 Countersunk Bore Factory

Single countersunk square neodymium magnets are powerful rare-earth magnets shaped in a square or rectangular form with a single countersunk hole, typically used for screw mounting. Their key characteristics include:

High Magnetic Strength: Made from NdFeB (neodymium, iron, and boron), these magnets offer exceptionally strong magnetic force relative to their size.

Countersunk Hole Design: The single countersunk hole allows for easy and secure mounting with flat-head screws, making neodymium magnet with countersink ideal for mechanical assemblies and fixtures.

Corrosion Resistance: Countersunk hole rare earth magnets coated with nickel to protect against corrosion and oxidation, especially in humid or outdoor environments.

FAQ about countersunk magnets

♦ When does polarity matter? ♦ 

If the neodymium countersunk block magnets are attracting to a piece of steel, the polarity doesn't matter. Each pole will equally attract to the steel. The only time polarity matters is if the magnet is attracting to another magnet - which is why we also sell them in pairs.

♦ Should I use another countersunk magnet, or a steel washer? ♦ 

This answer can depend on the application. When using two magnets, there could be alignment issues. You have to make sure the magnets are perfectly aligned, or they might not pull nicely to each other.

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