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Show Pot magnets with counterbore

Countersunk pot magnet Ø 20 mm, holds approx. 8,9 kg

Article ID CSN-20
Strength approx. 8,9 kg
Displacement force approx. 1,8 kg
UoS 1 piece
Similar products
 Examples of use
 Data sheet
Price and rebate
1 pc. 2,89 EUR ea.
from 3 pcs. 2,51 EUR ea.
from 10 pcs. 2,17 EUR ea.
from 20 pcs. 2,00 EUR ea.
from 40 pcs. 1,85 EUR ea.
Ask for a rebate from 240 pcs.
incl. VAT plus shipping
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2,89 EUR

incl. VAT plus shipping

promptly deliverable

Available: 219 828 pieces

Delivery time: 4-12 business days

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Description

Top seller: More than 4 500 000 sold!
This magnet in a steel pot has a countersunk borehole and can be fastened with a countersunk screw. This is one of our top sellers, thanks to its versatility: It is used in the shopfitting industry as well as in plastics engineering, the automotive industry and mechanical engineering and construction.

The following screws fit into the CSN-20, for example:

  • Slotted countersunk wood screw: DIN 97 (3,5 mm)
  • Cross recessed countersunk flat head screws (machine screw): ISO 7046-2 M3 (3 mm)
  • Countersunk torx screws/hexalobular socket (machine screw): ISO 14581 M3 (3 mm)
  • Hexagon socket countersunk flat head screws (machine screw): ISO 10642 M3 (3 mm)

Please note: The full adhesive force is achieved when the ferromagnetic counterpart is smooth and of sufficient thickness and when the pot magnet makes direct and full flush contact. Pot magnets already lose much of their adhesive force at a distance of only half a millimetre to the ferromagnetic surface. This characteristic is more pronounced in pot magnets than in other ferrite and neodymium magnets. You can find additional fascinating information on our FAQ page about pot magnet features.

Technical data

Article IDCSN-20
EAN7640155431606
MaterialNdFeB
Pot diameter D20 mm
Total height H6 mm
Borehole d14,5 mm
Countersinking d29,46 mm
Countersinking t2,48 mm
Tolerance+/- 0,1 mm
CoatingNickel-plated (Ni-Cu-Ni)
SteelQ235 (China)
MagnetisationN38
Strengthapprox. 8,9 kg (approx. 87,3 N)
Displacement force approx. 1,8 kg (approx. 17,5 N)
Max. working temperature80°C
Weight11 g
PDF data sheet
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.
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 answer to why you can arrange pot magnets only side by side can be found under our FAQ.
Here you can see 5 sizes of CSN magnets stacked on top of each other - from top to bottom:
  • CSN-16

  • CSN-20

  • CSN-25

  • CSN-32

  • CSN-40

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