Neodymium Countersunk Magnet is a piece of neodymium disc/block magnet with one or more countersunk holes for screws. It's usually used as holding magnet. We could provide both countersunk disc magnets and countersunk block magnets. American Applied Materials has been manufacturing neodymium countersunk magnets of various dimension and grade for various applications. Please send email to sales@rareearth-magnets.net to require more details.