Steel Cups & Washers
The configuration of the cups generally increases the holding power of rare earth magnets by as much as 4 times. The steel washers compliment the cups by acting as the perfect strike plate. All cups and washers are countersunk to be screwed in, except for the 1/4" cup, which is barbed for a press fit. If you anticipate a need to remove the magnet at some point, you can simply file a notch in the side of the cup to provide a pry point to lift it out. Zinc plated steel. Imported
Note: Cups and washers are not magnetic.