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This 20mm x 4mm Neodymium Rare Earth Super Magnet is ring shaped with a 5mm center hole that is conical on one side so it can be mounted perfectly with a screw. Much stronger than conventional ceramic magnets and plated in bright nickel for extra durability.
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(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
Use one of these Super Strong Neodymium Rare Earth Magnets for hobby projects where you want a ring shape that can be mounted with a screw to a wall or box or attached with thread through the center hole! With permanent magnetic strength and bright nickel plating to prevent chipping, these magnets are a great fit for most hobby projects. 20mm in diameter and 4mm tall with a 5mm center hole, these ring magnets are useful for creating strong connections without gluing or fastening. Couple one of these with our Magnetism Sensor / Reed Switch for a nice proximity sensor such as you'd find in the lid of a box used to detect if it is open/closed.
Specifications: