Pot magnets have a metric internal thread and can be fastened with objects with an external thread.
Disc magnets are very versatile, even the small ones have high holding power. Available in different sizes
A rod magnet has a classic cylindrical design. Even small magnets feature a very high adhesive force. Various heights and diameters available.
Cube magnets are a very popular and versatile type of neodymium magnet. Available in various sizes.
Sphere magnets are available in various sizes and strenghts.