Countersunk Neodymium Magnets — Screw-Mount Rare Earth Disc Magnets
Countersunk neodymium magnets feature a precision-machined conical recess on one face, allowing a flat-head or pan-head screw to sit flush with the magnet surface. This mounting configuration eliminates the need for adhesives, making countersunk magnets the preferred solution for cabinet door closures, display and exhibit mounting, furniture hardware, tool rack systems, jig and fixture construction, and any application requiring a mechanically secure, removable magnetic mount. JC Magnetics offers single-countersunk variants in N52 grade across a range of diameters. Pull-force ratings are measured axially and assume contact with a flat mild-steel surface. Stainless steel screws are recommended when corrosion resistance is required.
Brand: JC-magnetics
Model: JCN52-CK10-3-H3
10mm x 3mm (Hole: 3mm, fits #4 / M3) (25/64in x 1/8in (Hole: 1/8in, #4 / M3))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 3.26 lbs).Key Features:Dimensions Metric: 10mm diameter × 3mm thickness with 3mm countersunk hole (90° bevel, fits #4 / M3 screw)
Dimensions Imp..
$1.50
Brand: JC-magnetics
Model: JCN52-CK12-3-H3
12mm x 3mm (Hole: 3mm, fits #4 / M3) (15/32in x 1/8in (Hole: 1/8in, #4 / M3))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 5.92 lbs).Key Features:Dimensions Metric: 12mm diameter × 3mm thickness with 3mm countersunk hole (90° bevel, fits #4 / M3 screw)
Dimensions Imp..
$1.70
Brand: JC-magnetics
Model: JCN52-CK12-5-H4
12mm x 5mm (Hole: 4mm, fits #6 / M4) (15/32in x 13/64in (Hole: 5/32in, #6 / M4))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 6.80 lbs).Key Features:Dimensions Metric: 12mm diameter × 5mm thickness with 4mm countersunk hole (90° bevel, fits #6 / M4 screw)
Dimensions ..
$1.85
Brand: JC-magnetics
Model: JCN52-CK15-3-H3
15mm x 3mm (Hole: 3mm, fits #4 / M3) (19/32in x 1/8in (Hole: 1/8in, #4 / M3))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 6.30 lbs).Key Features:Dimensions Metric: 15mm diameter × 3mm thickness with 3mm countersunk hole (90° bevel, fits #4 / M3 screw)
Dimensions Imp..
$1.75
Brand: JC-magnetics
Model: JCN52-CK15-4-H4
15mm x 4mm (Hole: 4mm, fits #6 / M4) (19/32in x 5/32in (Hole: 5/32in, #6 / M4))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 7.80 lbs).Key Features:Dimensions Metric: 15mm diameter × 4mm thickness with 4mm countersunk hole (90° bevel, fits #6 / M4 screw)
Dimensions I..
$2.10
Brand: JC-magnetics
Model: JCN52-CK18-3-H3
18mm x 3mm (Hole: 3mm, fits #4 / M3) (45/64in x 1/8in (Hole: 1/8in, #4 / M3))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 7.80 lbs).Key Features:Dimensions Metric: 18mm diameter × 3mm thickness with 3mm countersunk hole (90° bevel, fits #4 / M3 screw)
Dimensions Imp..
$1.90
Brand: JC-magnetics
Model: JCN52-CK20-2-H3
Pull Force: 7.63 LBDimensions: 20mm diameter x 2mm thickness, hole 3mmMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe..
$2.90
Brand: JC-magnetics
Model: JCN52-CK20-3-H3
20mm x 3mm (Hole: 3mm, fits #4 / M3) (25/32in x 1/8in (Hole: 1/8in, #4 / M3))Neodymium Countersunk Disc Magnet – N52 Grade (Pull Force approx. 8.79 lbs).Key Features:Dimensions Metric: 20mm diameter × 3mm thickness with 3mm countersunk hole (90° bevel, fits #4 / M3 screw)
Dimensions Imp..
$3.00
Brand: JC-magnetics
Model: JCN52-CK20-5-H5
Pull Force: 20.31 LBDimensions: 20mm diameter x 5mm thickness, hole 5mm, (0.787in x 0.197in x 0.197in) 25/32in x 13/64in hole 13/64inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the..
$3.20
Brand: JC-magnetics
Model: JCN52-CK25-3-H4
Pull Force: 14.43 LBDimensions: 25mm diameter x 3mm thickness, hole 4mm, (0.984in x 0.118in x 0.157in) 63/64in x 1/8in hole 5/32inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthan..
$3.95
Brand: JC-magnetics
Model: JCN52-CK25-5-H5
Pull Force: 27.59 LBDimensions: 25mm diameter x 5mm thickness hole 5mm, (0.984in x 0.197in x 0.197in) 63/64in x 13/64in hole 13/64inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanth..
$7.50
-17%
Brand: JC-magnetics
Model: JCN52-CK15-3-H3/25
25pcs 15mm x 3mm x Hole 3mm N52 Countersunk Ring Pull Force: 8.67 LBDimensions: 15mm diameter x 3mm thickness, hole 3mm, (0.591in x 0.118in x 0.118in) 19/32in x 1/8in hole 1/8"Material Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a..
$19.50 $23.50