The SMBN0541 countersunk neodymium magnet is made from high-performance N42 NdFeB, with Nickel coating. The dimension of this item is 1" × 1" × 1/2" thick w/ hole to accept a #10 screw, magnetized through thickness, with the tolerance of ±0.004" × ±0.004" × ±0.004". The weight of this super strong neodymium magnet is 0.12375 lbs. It can pull up to 48.45 lbs steel. And the surface field is up to 3916 gausses.
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