Countersunk Ring Super Magnets

A countersunk ring magnet has a tapered center hole, so you can fasten it down with a flat-head screw and have the screw sit flush with the surface. That gives you a mechanical hold and a magnetic one, which matters for mounting points that take repeated stress or need to stay put permanently.

These come in 6mm, 8mm, 10mm, 12mm, and 20mm diameters, all 3mm thick. They suit panel mounts, tool holders, removable hatches, jigs, and any build where a glued-in magnet would eventually work loose.

We recommend matching the screw size to the countersink; if you are unsure, the larger diameters take a standard countersunk wood or machine screw.

 

(Diameter x Height)

Ring Magnet Height
Diameter 3.0mm
6mm 6.0x3.0mm
8mm 8.0x3.0mm
10mm 10.0x3.0mm
12mm 12.0x3.0mm
20mm 20.0x3.0mm
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  • 20pcs 8mm x 3mm neodymium countersunk ring magnets N52 rare earth8mm countersunk magnets showing size and countersunk hole for flush mounting

    20pcs 8mm x 3mm (Approximately 5/16" x 1/8") Countersunk Ring Magnets

    🧲 Pull Force: 3.32 lbs

    20pcs 8mm x 3mm (Approximately 5/16" x 1/8") Countersunk Ring Magnets

    $17.99 USD
    $17.99 USD
  • 20pcs 10mm x 3mm neodymium countersunk ring magnets N52 grade with screw hole

    20pcs 10mm x 3mm (Approximately 3/8" x 1/8") Countersunk Ring Magnets

    🧲 Pull Force: 4.21 lbs

    20pcs 10mm x 3mm (Approximately 3/8" x 1/8") Countersunk Ring Magnets

    $19.99 USD
    $19.99 USD
  • 20pcs 12mm x 3mm neodymium countersunk ring magnets N52 with nickel finish12mm countersunk magnets close-up showing countersunk screw hole detail

    20pcs 12mm x 3mm (Approximately 1/2" x 1/8") Countersunk Ring Magnets

    🧲 Pull Force: 6.3 lbs

    20pcs 12mm x 3mm (Approximately 1/2" x 1/8") Countersunk Ring Magnets

    $20.99 USD
    $20.99 USD
  • 10pcs 20mm x 5mm countersunk ring magnets - N52 neodymium with screw hole20mm x 5mm countersunk neodymium ring magnets close-up showing countersunk hole

    10pcs 20mm x 5mm (Approximately 3/4" x 3/16") Countersunk Ring Magnets

    🧲 Pull Force: 19.32 lbs

    10pcs 20mm x 5mm (Approximately 3/4" x 3/16") Countersunk Ring Magnets

    $24.99 USD
    $24.99 USD

  • 20pcs 1/4" x 1/8" Countersunk Ring Magnets Chrome

    🧲 Pull Force: 2.38 lbs

    20pcs 1/4" x 1/8" Countersunk Ring Magnets Chrome

    $18.99 USD
    $18.99 USD
  • 10pcs 25mm x 4mm countersunk ring magnets - N52 neodymium 1 inch diameter

    10pcs 25mm x 4mm (Approximately 1" x 5/32") Countersunk Ring Magnets

    🧲 Pull Force: 18.58 lbs

    10pcs 25mm x 4mm (Approximately 1" x 5/32") Countersunk Ring Magnets

    $34.99 USD
    $34.99 USD

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