Metal disc – screw-on counterpart 17x2 mm

Product detailed description

A zinc-plated steel base 17 mm in diameter and 2 mm thick, 6 mm inner hole, weight 4 g. A screw-on metal disc counterpart for magnets and pot magnets roughly 15–17 mm across — for example neodymium cylinders D 15 and D 16 mm. The countersunk hole keeps the screw head level with the seating face for the magnet.

1. Which magnets suit the 17x2 mm steel base?
   Magnets and pot magnets approximately 15–17 mm in diameter, typically neodymium cylinders D 15 mm and D 16 mm.

2. What screw is needed?
   A countersunk screw whose shank passes through the 6 mm hole and whose conical head seats in the countersink, flush with the surface. You choose the screw to suit the substrate, and we supply it separately.

3. Is this zinc-plated steel disc counterpart a magnet?
   No. It is a steel part with no magnetic field of its own; the magnet is ordered separately.

4. Does the metal disc counterpart have to be tightened fully?
   Yes. The steel base must seat over its whole area — if the metal disc counterpart stays warped or stands proud, an air gap forms and the magnet will hold less firmly.

5. How much does the 17x2 mm steel disc for magnets weigh?
   4 g. The low weight is an advantage on doors, covers and light panels, where you do not want to load the structure unnecessarily.

6. Can the 17 mm size also be used on metal?
   Yes, though on steel it is not needed — the magnet holds directly. It makes sense on aluminium, non-magnetic grades of stainless steel, brass and other non-magnetic metals.