4mm x 1.5mm (5/32" x 1/16") Neodymium Disc Magnet – N52 Grade

Key Features:

• Dimensions: 4mm diameter × 1.5mm thickness (Approx. 5/32" × 1/16")
• Pull Force: Approx. 0.71 LB
• Magnet Grade: N52
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for maximum protection
• Magnetization: Axially magnetized (Poles on the flat 4mm faces)
• Shape: Disc

Material Description:

Our 4x1.5mm N52 neodymium magnets are a staple for makers and engineers. The 4mm diameter offers a larger bonding surface, making it easier to glue into place, while the 1.5mm thickness keeps the profile low. These are significantly stronger than standard ceramic magnets of the same size.

Pro Tip: Neodymium magnets are brittle. When working with 4mm discs, ensure they don't "clack" together, as the edges can chip. Always slide them apart to maintain the integrity of the Ni-Cu-Ni coating.

Warnings and Safety Information:

• Choking Hazard: Small size is dangerous if swallowed. Keep out of reach of children and pets.
• Medical Safety: Strong magnetic fields can interfere with pacemakers.
• Handling: These magnets can snap together with surprising speed; handle with care to avoid minor pinches.
• Not a toy. Designed for professional, industrial, and hobbyist applications.

Applications:

• Mounting small LED light kits in models or displays
• Magnetic closures for small jewelry boxes and journals
• Industrial sensors and reed switch activation
• DIY home projects (refrigerator magnets, spice jars)
• School science projects and physics demonstrations