Steel Magnet Washer, 1 in. features steel magnet cups and washers designed to enhance the power and versatility of rare earth magnet discs. The unique configuration of these cups can increase the holding power of rare earth magnets by up to four times, making them incredibly effective for various applications. The steel washers serve as the i strike plate to complement the cups. Each cup and washer is countersunk for screw installation, except for the 1/4" cup, which is barbed for a press fit. For easy removal, you can file a notch in the side of the cup to create a pry point. Made from zinc-plated steel and imported, this washer matches a 1" magnet, has an outer diameter of 1-1/8", and requires a 0 screw for installation. It is important to note that the cups and washers themselves are not magnetic. Model Number: 47315