MM-D-25 - Neodymium Female Stud Mounting Magnet - 25mm Dia

• Dimensions:
      D=25mm (0.98")
      d=5mm (0.20") (M5 Coarse Female threaded stud)
      H=17mm (0.67")
      h=8mm (0.31")
      M=8mm (0.31")
• Material: NdFeB, Grade N38
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 0.98 oz. (27.8 g)
• Pull Force: 48.5 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.