Neodymium Screw On Magnets

All flat ring magnets and block magnets with countersunk holes can be fastened with countersunk head screw, and given the name of screw-on magnets or screw-in magnets.Due to strong adhesive force, neodymium screw-on magnets are widely used in kitchen installations, booth construction, and shopfitting, signage technology, furniture construction, etc. Neodymium&ferrite pot magnets with counterbore and pot magnets with cylindrical borehole are also perfect for screw-fastening


Neo screw-on Magnets: A special magnet designed for non-magnetic surfaces, it secures and adheres using the principles of magnetic attraction and repulsion when paired with screws.

Typically circular or square with a central screw hole, it requires careful consideration during use:

1. Confirm screw specifications for proper magnet selection.

2. Identify material and thickness of the non-magnetic surface for appropriate magnet size and strength.

3. Consider weight and dimensions of the component for suitable magnet specifications.

During installation, affix the magnet to the non-magnetic surface, then secure the component with screws. Protect the magnet surface from scratches or impacts. In summary, screw hole magnets are convenient, practical, and widely utilized in industrial, electronic, and mechanical fields. Choose the right specifications and follow guidelines for correct installation and usage.

Surface Treatment is Required on Neodymium(NdFeB) Screw on Magnets

To make them used longer, protection coating needed for the surface of rare earth neodymium(NdFeB) screw-on magnet, Zinc plating, nickel, environmental protection zinc, environmental protection nickel, nickel copper nickel, environmental protection nickel copper nickel,epoxy coating are usually adopted. Rubber or plastic coated neodymium screw-on magnets can be supplied by Meank.

SurfaceCoatingThickness (Microns)ColorResistance
1Silver GreyTemporary Protection
NickelNi+Ni10-20Bright SilverExcellent Against Humidity
Ni+Cu+NiGood Against Salt Spray
ZincZn8-20Bright BlueExcellent Against Salt Spray
C-ZnShinny ColorSuperior Against Humidity
TinNi+Cu+Sn15-20SilverSuperior Against Humidity
SilverNi+Cu+Ag10-20SilverSuperior Against Humidity
GoldNi+Cu+Au10-20GoldTemporary Protection
CopperNi+Cu10-20GoldExcellent Against Humidity&Salt Spray
EpoxyEpoxy15-25Black,Red,GreyExcellent Against Humidity,Salt Spray,Superior Against Solvents,Gases, Fungi and Bacteria,FDA Approved
Ni+Cu+EpoxyExcellent Against Humidity
ParyleneParylene5-20GreyExcellent Against Humidity
ChemicalNi10-20Silver GreyExcellent Against Humidity


Magnetization Direction of Neodymium (NdFeB) Screw-on Magnets

Screw-on magnets are usually axially magnetized.That’s to say the poles are located above and below on the circular surface.Please tell us which side is N-pole or S-pole when order screw-on magnets

Custom Screw-on Neodymium(NdFeB) Magnet

Screw-on neodymium magnets are widely used magnetic holder in daily life,some size can be used almost everywhere.We can make all types of custom neodymium screw-on magnets,which including rectangular screw-on neodymium magnet blocks,screw-on magnetic disc, waterproof screw-on magnets with plastic or rubber coated.The drawings are usually needed for making screw-on neodymium magnets.

The Maximum Working Temperature of Neodymium Screw-on Magnets

Neodymium Material GradeMaximumWorking Temp.Curie Temp.
N(N35,N38,N40,N42,N45,N48,N50,N52)176°F (80°C)590°F (310°C)
N-M(N35M,N38M,N40M,N42M,N45M,N48M,N50M,N52M)212°F (100°C)644°F (340°C)
N-H(N35H,N38H,N40H,N42H,N45H,N48H,N50H)248°F (120°C)644°F (340°C)
N-SH(N35SH,N38SH,N40H,N42SH,N45SH,N48SH)302°F (150°C)644°F (340°C)
N-UH(N28UH,N30UH,N33UH,N35UH,N38UH,N40UH,N42UH)356°F (180°C)662°F (350°C)
N-EH(N28EH,N30EH,N33EH,N35EH,N38EH,N40EH)392°F (200°C)662°F (350°C)
N-AH(N28AH,N33AH,N35AH,N38AH)428°F (230°C)662°F (350°C)

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