Metal disc – screw-on counterpart 45x2 mm

Product detailed description

A zinc-plated steel base 45 mm in diameter and 2 mm thick, 6.2 mm inner hole, weight 24 g. A large metal disc counterpart with a low build height for magnets roughly 43–45 mm across, typically rubber-coated magnets and 43 mm magnetic holders. It is not a magnet — the magnet is ordered separately.

1. What is the difference between the 45x2 mm and the 45x3 mm size?
   The diameter is the same; the thickness and the hole differ: the 2 mm version has a 6.2 mm hole and weighs 24 g, while the 3 mm version has a 5.5 mm hole and weighs 36 g. Choose the thinner one where space is tight and the thicker one for better closing of the magnetic flux.

2. Which magnets is the 45x2 mm version for?
   Magnets approximately 43–45 mm in diameter — for example 43 mm rubber-coated neodymium magnets and magnetic holders with a rubber-coated contact face.

3. What screw hole does this steel disc counterpart have?
   An inner diameter of 6.2 mm with a countersink for a conical screw head, so that the head stays level with the seating face of the steel base.

4. Is the 45x2 mm metal disc counterpart magnetic?
   No. The parameters state “This is not a magnet” — this metal disc counterpart works only in a pair with a magnet.

5. Where is this size used most often?
   With rubber-coated magnets for mounting cables, covers, signs and jigs, where a large seating area and gentle contact with the surface are needed.

6. Does the substrate under the steel base have to be flat?
   Yes. On an uneven substrate the steel bends or touches with only part of its area, which reduces the holding force of the magnet.