MM-A-20 - Neodymium Countersunk Mounting Magnet - 20mm Dia

• Dimensions:
  D=20mm (0.79")
  d1=4.5mm (0.18") (Sized for M4 screw)
  d2=8.5mm (0.33") (Tapered countersunk hole)
      h=7mm (0.28")
• Material: NdFeB, Grade N38
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 0.47 oz. (13.3 g)
• Pull Force: 16.20 lbs
• Surface Field: N/A
• Brmax: 12,600 Gauss
• BHmax: 38 MGOe

The MM-A style is a flat mounting magnet with a tapered hole to recess a screw head. One can be attached to an object that needs to be hung from a metal surface, or it can be screwed to a wall, ceiling or fixture to hold metallic objects in place. Incredibly handy!