48 x 11 mm Neodymium Rare Earth Female Stud Mounting Magnet N38 PN: MM-D-48

• Dimensions:
      D=48mm (1.89")
      d=8mm (0.31") (M8 Coarse Female threaded stud)
      H=24mm (0.94")
      h=11mm (0.43")
      M=12mm (0.47")
• Material: NdFeB, Grade N38
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 4.48 oz. (127 g)
• Pull Force: 178.6 lbs
• Surface Field: N/A
• Brmax: 12,600 Gauss
• BHmax: 38 MGOe

The MM-D style is a flat mounting magnet with a female threaded shaft permanently attached. If you need a magnet to attach to something threaded, this is what you need.