Metal disc – screw-on counterpart 12x2 mm

Product detailed description

The smallest screw-on metal disc counterpart in the range: a zinc-plated steel base 12 mm in diameter and 2 mm thick with a 4 mm inner hole and a countersink for a countersunk screw. Weight 1.5 g. It is used with small magnets and pot magnets roughly 8–12 mm across. Screw anchoring gives a permanent joint independent of adhesive, and the part is not a magnet.

1. What is the 12x2 mm screw-on metal disc counterpart?
   It is a steel base 12 mm in diameter and 2 mm thick with a hole of 4 mm inner diameter. This steel disc with a countersunk hole is screwed to the substrate and creates a surface a magnet attaches to.

2. Why is the hole countersunk?
   The countersink lets the screw head seat flush with the surface of the steel base. The magnet then sits on a flat area and no air gap forms to reduce the holding force.

3. Which magnets suit the 12x2 mm steel disc for magnets?
   Magnets and pot magnets approximately 8–12 mm in diameter, for example neodymium cylinders D 10 mm or 10 mm pot magnets.

4. Does the 12x2 mm countersunk steel disc have a magnetic field?
   No. The parameters state “This is not a magnet” — it is a zinc-plated steel disc counterpart.

5. When should you choose the screw-on version rather than the bonded one?
   Whenever the joint must be permanent, carries a load, or is exposed to moisture and temperature changes. A bonded metal disc counterpart is quicker to fit but depends on how well the tape grips the substrate.

6. Does the substrate need pre-drilling?
   In hardwood, metal and plastic yes — pre-drilling prevents the material from splitting and lets the screw be tightened so that the steel base seats over its whole area.