Ferrite Hook Magnets

Ferrite hook magnets are a type of "pot" magnet, which means they are Ferrite Anisotropic magnets in steel casings.

The hooks on these magnets can be unscrewed, and they typically have an M4 (4mm metric) thread size, allowing for replacement with an M4 bolt or closed ring if necessary.

These hooks are used for various purposes, such as suspending advertising signs, and decorations, hanging up keys, etc.

It's important to note that the sliding or shear force on these magnets is only about 60% of the straight pull-off force.