Eclipse E860 Ceramic Pot Magnets; Diameter (Inch): 0.3940; 10 mm; 0.394 in; Countersunk Hole Size: M3; Height (Inch): 0.177 in; 4.5 mm; Height (mm): 0.177 in; 4.5 mm; 4.50; Average Pull Force (Lb.): 0.9 lb; 0.9; 0.41 kg; Tap Size: M3; Maximum Operati