MG Series, Alnico VIII sintered cylindrical magnet, in internally threaded 4x40 metal bushing, 12,19 mm W x 7,87 mm Dia. [0.48 in W x 0.31 in Dia], bulk packaging of 100 pieces The MG Series Magnets are available in various compact configurations, strengths, and magnetic materials and are intended for use as actuators for Hall-effect and magnetoresistive sensor ICs with unipolar or omnipolar magnetic characteristics. These magnets are designed to provide minimum magnetic fields at a specified distance to help system designers match the appropriate magnet to their requirements.