Pot magnet Ø 20 mm with countersunk hole, holds approx. 8.9 kg

Item number	CSN-20
Strength	approx. 8.9 kg
Displacement force	approx. 1.8 kg
Unit of Sale	1 piece

Similar products
Examples of use
Data sheet

Price and rebate
	1 pc.	2.75 CHF ea.
from	3 pcs.	2.35 CHF ea.
from	10 pcs.	2.05 CHF ea.
from	20 pcs.	1.90 CHF ea.
from	40 pcs.	1.80 CHF ea.
Ask for a rebate from 260 pcs.
incl. VAT plus shipping

2.75 CHF

incl. VAT plus shipping

promptly deliverable

Available: 511'467 pieces

Delivery time: 1-2 business days

Quant.

Purchase on account

Description

Top seller: More than 5'100'000 sold!
This magnet in a steel pot has a countersunk hole 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 screws: DIN 97 (3.5 mm)
Cross recessed countersunk flat head screws (machine screw): ISO 7046-2 M3 (3 mm)
Hexalobular socket countersunk flat head screws (machine screw): ISO 14581 M3 (3 mm)
Hexagon socket countersunk flat head screws (machine screw): ISO 10642 M3 (3 mm)

Neodymium magnets are brittle and can break under excessive application of force. Therefore, we recommend a maximum tightening torque of 2 Nm when fastening this magnet.

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 ID	CSN-20
EAN	7640155431606
Material	NdFeB
Pot diameter D	20 mm
Total height H	6 mm
Hole d1	4.5 mm
Countersinking d2	9.46 mm
Countersinking t	2.48 mm
Tolerance	+/- 0.1 mm
Coating	Nickel-plated (Ni-Cu-Ni)
Steel	Q235 (China)
Magnetisation	N38
Strength	approx. 8.9 kg (approx. 87.3 N)
Displacement force	approx. 1.8 kg (approx. 17.5 N )
Max. working temperature	80°C
Weight	11 g
PDF data sheet

Additional features and tips

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.