WHAT IS A COUNTERSUNK ROUND MAGNET: A countersunk (aka countersink magnet) round magnet is a disk magnet with a countersunk hole in the center of one of its magnetic faces, either the south or north pole. A more specific definition is a super-strong countersunk circular magnet is a round magnet with a countersunk hole that generates a magnetic field across its face. Just like that name indicates, a countersunk round magnet is a 100% round magnet with a countersink hole in the center area. This high-quality countersunk disk magnet is made up of the alloy of neodymium, iron, and boron. Nickel-copper-nickel is coated on its surface which enables this magnet to have a permanent magnetic property. The wedge and the hole exist so that the countersunk magnet could be anchored in one place just with a single screw. The good news is that for every countersunk round magnet you purchase, there are several free screws accompanied by that. Sometimes, when the screws are not your choice, you also can use nails, bolts, or other fixtures to get your magnet attached. Here are some applications that the countersunk round magnet might need, this strong neodymium countersunk ring magnet is ideal for securely attaching magnets on to both magnetic and non-magnetic surfaces, for example, aluminum, brass, copper, plastic, rubber, and wood. With screws fastening, you even can apply this magnet to hidden closure or art frames and more. This high-quality and cheap countersunk ring magnet is for sale now. Want to experience the best service and quality, just place your order over here. Various sizes, colors, and pull forces are now available. Customize is also available now.