Countersunk metal disc w/edge, Round 21x2 mm.

This is not a magnet!

Magnetic metal plate with countersunk hole (3M) and border for mounting with screw. 

Perfect for e.g. a hook magnet or other pot magnet. The border prevents magnets from sliding off the plate. 

Use Ø20 magnets as counterparts. Metal plates works as counterparts to magnets and are often cheaper than using magnet on magnet. 

The metal plates aren't magnets in themselves - they are magnetic and can be used as countparts together with magnets. 

SPECIFICATIONS:
Diameter: 21 mm.
Height incl. border: 2 mm.
Border height: 1 mm.
Hole size: M3.
Coating: zink

Not suitable for outdoor use (they will rust over time)

Mounting:
When securing the metal plate, it's best to use a countersunk screw with a cone shaped head - 4.7 mm, to 5.7 mm screws can be used. The screw head must be level with the metal surface to be magnetic all over.

NB! Remember to mount the plate before trying out a magnet on it, as it is made of quality metal and will bind strongly to the magnet.