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Description
Technical
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- Dimensions: 1/4"od x (1/10" x 1/21") x 1/4"
- Tolerances: ±0.004" x ±0.004" x ±0.004"
- Material: NdFeB, Grade N42
- Plating/Coating: Ni-Cu-Black Ni (Black Nickel)
- Magnetization Direction: Axial (Poles on Flat Ends)
- Weight: 0.0405 oz. (1.15 g)
- Pull Force: 2.89 lbs
- Brmax: 13,200 Gauss
- BHmax: 42 MGOe
The rings are sold in pairs because there are two different magnetization directions on the rings to allow them to work as clasps. One of the magnets in the pair has the north pole on the counersunk hole side and the other has the south pole on that side. This allows the two faces to meet flat, as a knot fits inside the countersunk hole in the ring. The clasps are plated in black nickel for a shiny, charcoal-colored finish. The small hole is 1/21" and the large hole is 1/10".
 | Pull Force, Case 1 vs. distance: Magnet to a Steel Plate. |
 | Pull Force, Case 2 vs. distance: Between 2 Steel Plates. |
 | Pull Force, Case 3 vs. distance: Magnet to Magnet. |
 | Pull Force, Case 4 vs. distance: Magnet to Magnet Repulsion. |
 | Click this link for a depiction of the magnetic field. |
 | View B-H curves for this magnet. |
 | Click this link to download a PDF Specification Sheet. |
 | Click this link to download a PDF drawing of this product. |
 | Click this link to download a Certificate of Compliance for this product. |
 | Click this link to download a RoHS Statement of Compliance for this product. |
 | Click this link to download a Material Safety Data Sheet (MSDS) for this product. |
 | Click this link to download a Conflict Minerals Reporting Template (CMRT). |
 | Click this link to download a Certificate of Origin for this product. |
 | Click this link for a REACH compliance statement. |
 | Click this link to download a .STEP file (3D model). |
 | Click this link to download an .IGS file (3D model). |
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