Countersunk pot magnet

Ø 20 mm, strength approx. 11 kg
promptly deliverable
Strength: approx. 11 kg
Available: 94 932 pcs.
Delivery time: 2 - 5 business days
Price and rebate
1 pc. 3,04 EUR ea.
from 3 pcs. 2,65 EUR ea.
from 10 pcs. 2,30 EUR ea.
from 20 pcs. 2,13 EUR ea.
from 40 pcs. 1,98 EUR ea.
incl. 21% VAT plus shipping


Bestseller: More than 1 million sold!
This pot magnet has the same dimensions as CSN-20, but with a thicker steel pot and, hence, a higher adhesive force. It can be fastened with a countersunk screw. This extra-strong pot magnet has proved itself especially in the areas of store construction, kitchen/bath design, electronic engineering and product development.
Read about more features and tips

Technical data

Article ID CSN-ES-20
Material NdFeB
Pot diameter D 20 mm
Total height H 6 mm
Borehole d1 4,5 mm
Countersinking d2 9,46 mm
Countersinking t 2,48 mm
Tolerance +/- 0,1 mm
Coating Nickel-plated (Ni)
Steel Q235 (China)
Magnetisation N42
strength approx. 11 kg
Max. working temperature 80°C
Weight 12 g
PDF data sheet

Additional features and tips

Click to enlarge
The graph shows the maximum adhesive force in kg (y axis) at various distances in mm (x axis) between pot magnet and counterpart (steel plate). Example: At a 1 mm distance between pot magnet and steel plate the maximum adhesive force is still 2 kg.

Click to enlarge
Here you can see the difference between a CSN and a CSN-ES magnet. Although both types have similar dimensions on the outside, the CSN-ES has a thicker steel pot (in grey) and a slightly smaller magnet. This leads to an overall stronger adhesive force, despite the smaller magnet, because the metallic adhesive surfaces are larger. Since the new CSN-ES magnet is too strong for some of our customers, we also offer the somewhat weaker CSN-alternative.
The following screws fit into the CSN-20, CSN-ES-20, as well as CSN-HT-20:
  • Countersunk wood screw with groove: DIN 97 (3,5 mm)
  • Recessed countersunk flat head screws (machine screw): ISO 7046-2 M3 (3 mm)
  • Countersunk torx screws (machine screw): ISO 14581 M3 (3 mm)
  • Hexagon socket countersunk flat head screws (machine screw): ISO 10642 M3 (3 mm)
The answer to why you can arrange pot magnets only side by side can be found under our FAQ.

Customer applications that use this product