Magnet with metric threaded connection. Shallow pot with NdFeB core. Steel jacket, zinc plated. Max. temperature 80°C. Overall diameter, 20 ±0.15 mm. M4 internal thread. Magnet height 6 mm, not including threads. Overall height 13 mm. Magnetic force 140 N. Shielded system. Neodymium permanent magnetic material provides 10-20% higher magnetic force compared to samarium-cobalt magnets.