Metal disc – screw-on counterpart 27x3 mm

Product detailed description

A zinc-plated steel base 27 mm in diameter and 3 mm thick, 5.5 mm inner hole, weight 12 g. The 3 mm thickness closes the magnetic flux better than a 2 mm sheet, so this metal disc counterpart also suits stronger magnets roughly 25–27 mm across. It is anchored with a countersunk screw and has no magnetic field.

1. What do I get when I order the 27x3 mm metal disc counterpart PDSD05?
   One zinc-plated steel disc counterpart 27 mm in diameter and 3 mm thick with a 5.5 mm hole and a countersink for a countersunk screw. Neither the screw nor the magnet is included in the delivery.

2. Which magnets suit the screw-on 27x3 mm steel base (PDSD05)?
   Magnets and pot magnets approximately 25–27 mm in diameter, for example neodymium rings D 25 mm.

3. Why choose 3 mm thickness rather than 2 mm?
   A thicker steel base closes the magnetic flux better, so the magnet holds closer to its nominal force. Choose a thinner metal disc counterpart only where you are short of space.

4. Is the zinc-plated PDSD05 magnetic?
   No — the product states “This is not a magnet”. It serves only as a steel mounting surface for the magnet.

5. How much does the 27x3 mm steel base (PDSD05) weigh?
   12 g. On doors and light panels the weight is negligible; on portable jigs we recommend including it in the overall design.

6. How do you secure the maximum holding force?
   The seating face of the steel base must be flat, clean and free of paint or dirt, the screw head must be flush, and the magnet must sit over the whole area with no air gap.