Here are the largest standard size of neodymium pot magnets with threaded holes, which have M10 threaded sockets in center. The common grade is N35 that produce about 174 kg vertical pulling force. After screwed with threaded eyelets, you can use the strongest neodymium pot magnets 75x18mm with threaded holes (sockets) for magnet fishing. Ring bolts and ropes can be provided together according to request.
Dimension: Diameter-75mm, thickness-18mm
Magnetic Core: Round ring magnet of neodymium
Magnetic Force: Vertical pull force - 382 lb
Surface Treatment: Ni-Cu-Ni plating
With Threaded Hole - H75
Ø75 x 18mm
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