20mm Neodymium Shallow Pot Magnet - 

The blind ended Neodymium NdFeB shallow pot magnet is a pot magnet that is generally wider in diameter than it is tall comprising a magnet (usually a disc magnet) inside a ferromagnetic (mild steel) cup. The ferromagnetic cup has no fixing means (no holes, no threads) - it is blind ended. The blind ended shallow pot magnet is meant for press fitting into an application (so it does not require holes or threads to connect to it). The blind ended shallow pot magnet can sometimes (not often) also be used for applications where is clamps to a ferromagnetic surface and it is not meant to be easily removed (it is deliberately meant to be difficult to get a hold of for trying to remove).