| Material | Ferrite |
| Diameter | 20mm |
| Thickness | 6mm |
| Hole | M4 |
| Coating | Ni / Zn |
| Force(N) | 27 |
| Weight | 9 |
The small countersunk pot(cup)magnets of ferrite(ceramic)of 20x6mm have about 2.7kgs pull force, they are mountable by M4 screw with counter head. The metal shell are treated with nickel or zing plated.
