30LBS Waterproof Neodymium Magnets with Countersunk Hole - Strong for Tools, Science, and Wall Mounting

About this item

• 【VERY STURABLE 】These magnets for science projects with countersunk hole and screws are made of metal material, more sturable and long lasting than the plastic one. These strong craft magnets are protected in the steel cup and will not break in normal use, which greatly increases the life of the cup magnets.
• 【MULTIFUNCTIONAL USE】Wall magnets measure 20mmx5.5mm (0.78x0.2 inch), tolerances: ±0.2mm x ±0.2mm, Rost-resistant magnets can be better applied to companies, industry, scientific research, furniture and household, Black magnet is perfect for the black home decoration, hidden combination.
• 【STRONG POWERFUL】The powerful magnet has a strong magnetic field, industrial magnets can attract and fix various metal objects, such as nails, screws, etc, making work more convenient and efficient.
• 【Rust-proof and water-resistant】High-strength magnets are coated with a triple layer of black epoxy, nickel, and copper. This superior coating offers a glossy finish and effective rust protection for the water-resistant magnets. The surface is treated with automotive-grade epoxy, surpassing 72 hours in total salt spray testing, effectively addressing the rusting issue of neodymium magnets.
• 【PROFESSIONAL SERVICE】Our circle magnets are manufactured according to ISO 9001 Quality Systems. We are a magnet supplier with professional strength. You can certainly find any magnets you want in our shop, If you need other n52 neodymium magnets, Search us and we can meet your needs.