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Block magnet 20 x 20 x 4 mm, holds approx. 7.5 kg

with countersunk hole, N35, nickel-plated

Item number CS-Q-20-20-04-N
Strength approx. 7.5 kg
Displacement force approx. 1.5 kg
Unit of Sale 1 piece
Price and rebate
1 pc. 2.80 CHF ea.
from 3 pcs. 2.40 CHF ea.
from 10 pcs. 2.10 CHF ea.
from 20 pcs. 2.00 CHF ea.
from 40 pcs. 1.85 CHF ea.
Ask for a rebate from 350 pcs.
incl. VAT plus shipping

2.80 CHF

incl. VAT plus shipping

promptly deliverable

Available: 34'129 pieces

Delivery time: 1-2 business days


  • Purchase on account


Block magnets with a square base area and a countersunk hole. They can be fastened with a countersunk head screw. They are only 4 mm thick and therefore very discreet for hanging up signs, tools, etc. Especially suitable for cabinetmaking, kitchen installations, booth and store construction, signage technology, etc. We also carry round Pot magnets with countersunk hole screw-on.

Please note: 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.

The following screws fit into the hole of these magnets, for example:

  • Countersunk wood screws with groove: DIN 97 (3.5 mm)
  • 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)

Technical data

Article ID CS-Q-20-20-04-N
EAN 7640155431415
Material NdFeB
Strength approx. 7.5 kg (approx. 73.5 N)
Displacement force approx. 1.5 kg (approx. 14.7 N )
Length S1 20 mm
Length S2 20 mm
Height H 4 mm
Hole d1 4.5 mm
Countersink d2 9.46 mm
Countersink t 2.48 mm
Tolerance +/- 0.1 mm
Coating nickel-coated (Ni-Cu-Ni)
Magnetisation N35
Max. working temperature 80°C (possibly lower)
Weight 11 g
PDF data sheet
Neodymium magnets are very brittle and can break or chip when exposed to repeated blows. To protect the magnets it would be best to slightly countersink them into a material (e.g. into the wood of the furniture).
An overview of all countersunk block magnets:

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