20x10x3mm neodymium countersunk rectangular magnets

Neodymium(also known as "Neo","NIB" or "NdFeB")magnets,are made from alloy of neodymium,iron and boron.They are the strongest rare-earth magnetic material, and used in different shapes.Neodymium rectangular magnet with countersunk holes can be assembled easily onto non-metal surface with screw,such as wood and plastic... And used as holding magnets.We have this type of neodymium rectangular magnets with countersunk holes in stock and can deliver it rapidly.