N35 Strong Block Magnet 40 x 10 x 4 mm Rare Earth Neodymium Block Magnets with double Countersunk 4 mm Hole
Size : 40 mm x 10 mm x 4 mm (Length x Width x Thickness)
Metric Size : 40 x 10 x 4 mm
Countersunk Hole Size : 4 mm
Screw Size : #4
Grade : N35
Pull Force : 10.7 lbs
Coating : Nickel-Copper-Nickel (Ni-Cu-Ni)
Magnetization : Thru Thickness
Material : Neodymium (NdFeB)
Tolerance : +/- 0.1 mm
Max Operating Temperature : 176ºF (80ºC)
Here we offer the popular size of 30mm x 10mm in 5mm thickness with holes for two #4 flathead screws and in the strong grade N35. The B40x10x4mmN35 is magnetized with the north pole on the countersink side.
These countersunk block magnets can be used for a wide range of applications including door closures and tool hangers.
Please note: Neodymium magnets are brittle and can break under excessive application of force. Not all holding surfaces are level, which is why magnets need a little slack. This allows them to optimally align with the ferromagnetic object and extend the highest adhesive force. That is why we recommend fastening these magnets by hand.
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