Neodymium Round Disc Magnets 12x3mm (1/2x1/8 Inch) N50 Rare Earth Magnets with 3mm Countersunk Hole for Screws – Single-Orientation Magnet Fasteners for Crafts, DIY, and Mounting (50 Pack)

These 12x3mm neodymium disc magnets with a 3mm countersunk hole are built for clean, secure screw mounting in DIY, craft, and light-duty assembly projects. Each magnet is made from high-grade N50 neodymium, offering a reliable balance of strength and size for consistent holding power. The precise countersunk hole fits standard flat-head screws, allowing magnets to sit flush with the surface and create a neat, professional finish without protrusion. Their triple Ni-Cu-Ni coating enhances resistance to rust, oxidation, and mechanical wear, ensuring a smooth finish and longer service life compared to cheaper, unprotected magnets. These magnets retain their magnetization for years, even under frequent use or exposure to handling. Perfect for use in crafts, cabinetry, mechanical models, signage, and household organization, they provide a strong magnetic base that’s both reusable and reliable. Whether you’re building a magnetic latch, a detachable fixture, or a display system, these countersunk neodymium magnets offer a simple, elegant solution that performs consistently over time. For best results, use them on clean metal surfaces and handle with care—neodymium magnets are strong yet brittle. Not suitable for children or high-impact use.

• Precise Size and Strength: Each magnet measures 12mm in diameter by 3mm thick (about 1/2 x 1/8 inch) with a 3mm hole for screw mounting. N50 grade provides reliable pull force up to 7.3 lbs.
• Durable Triple Coating: Protected by a Ni-Cu-Ni triple layer for smooth finish, corrosion resistance, and long-term durability in indoor or dry environments.
• Flush Countersunk Design: Fits neatly with flat-head screws for a clean, professional installation on wood, metal, or other flat surfaces.
• Versatile Magnetic Fastener: Ideal for DIY projects, crafts, signage, and light mounting tasks where compact magnetic holding is required.
• Reliable Quality: Made from high-grade N50 neodymium, these magnets deliver consistent, honest strength - more reliable than lower-grade magnets.