Metal disc with an edge and sinkhole drilling M4
The edge of these metal discs prevents the magnet from sliding down if attached in a vertical position, which counteracts the shear force and maintains a high adhesive force.
Note: Once a magnet of suitable size (e.g. CSN-25) sits on the disc, it is hard to remove thanks to the edge. Therefore, make sure you first attach the metal disc and the magnet to the desired object (or screw in the hook/grommet/handle).
The metal discs are not rustproof and hence not suitable for outdoor use.
|Diameter D||26 mm|
|Height H||3 mm|
|Material strength t||1 mm|
|Material||Structural steel ST37|