R422 - Neodymium Ring Magnet - 1/4" Dia x 1/8" ID x 1/8" Thi

• Dimensions: 1/4" od x 1/8" id x 1/8" thick
• Tolerances: ±0.004" x ±0.004" x ±0.004"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 0.02 oz. (0.57g)
• Pull Force, Case 1: 1.80 lbs
• Pull Force, Case 2: 2.80 lbs
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

The R422 is a very affordable little ring magnet. Great for anything you would use a small ring magnet for, such as tying to a string to pick up or hang metal objects, science demonstrations and mounting with a screw.