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Block magnet 20 x 20 x 4 mm

with countersunk borehole, N35, nickel-plated

Article ID CS-Q-20-20-04-N
Strength approx. 7.5 kg
Displacement force approx. 1.5 kg
UoS 5 pieces
Price and rebate
5 pcs. 1.55 CHF ea.
from 15 pcs. 1.37 CHF ea.
from 40 pcs. 1.23 CHF ea.
from 80 pcs. 1.15 CHF ea.
Ask for a rebate from 450 pcs.
incl. VAT plus shipping

7.75 CHF

incl. VAT plus shipping

promptly deliverable

Available: 7'420 pieces

Delivery time: 1 - 2 business days


  • Purchase on account


Block magnets with a square base area and a countersunk borehole. 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 counterbore 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 borehole of these magnets, for example:

  • 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)

Technical data

Article IDCS-Q-20-20-04-N
Strengthapprox. 7.5 kg (approx. 73.5 N)
Length S120 mm
Length S220 mm
Height H4 mm
Borehole d14.5 mm
Countersink d29.46 mm
Countersink t2.48 mm
Tolerance+/- 0.1 mm
Coatingnickel-coated (Ni-Cu-Ni)
Max. working temperature80°C (possibly lower)
Weight11 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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