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

Key Features:

• Dimensions: 4mm diameter × 1mm thickness (5/32" × 1/32")
• Precision Tolerance: ±0.05mm – Perfect for tight mechanical assemblies
• Magnet Grade: N52
• Pull Force: 0.45 LB
• Plating: Real Gold (Ni-Cu-Ni-Au) – Superior corrosion resistance and conductivity
• Magnetization: Axially magnetized (Poles on the flat 4mm faces)
• Shape: Small Disc

Material Description:

Our 4x1mm Gold Plated magnets are designed for professional engineering and high-end hobby use. The gold plating provides an inert surface that is more resistant to oxidation than standard nickel, making them suitable for long-term use in humid environments. The 4mm footprint offers excellent stability, while the N52 grade ensures a surprisingly strong "snap" for its small size.

Handling Tip: Gold plating is elegant but can be scratched. Avoid using metal tweezers; instead, use plastic or wooden tools to handle these magnets. Always slide them apart to protect both the finish and the brittle neodymium core from impact damage.

Warnings and Safety Information:

• Choking Hazard: Small size is dangerous for children and pets. Keep strictly in a secure container.
• Medical Safety: Keep away from pacemakers and sensitive medical implants.
• Electronics: Ideal for conductive contacts, but keep away from magnetic storage media and hard drives.
• Fragility: Neodymium is a brittle ceramic; handle with care to prevent chipping.

Applications:

• High-end jewelry clasps and invisible magnetic fasteners
• Conductive battery contacts for wearable technology and micro-electronics
• Premium miniature gaming (perfect for visible "gold-themed" armor or joints)
• Luxury stationery and bespoke wedding invitations
• Scientific research requiring non-reactive magnetic surfaces