20mm x 0.5mm (25/32" x 1/64") Neodymium Disc Magnet – N52 Grade 

Key Features:

• Dimensions: 20mm Diameter × 0.5mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 1.1 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating
• Magnetization: Axially magnetized through the 0.5mm thickness (Poles on the large flat faces)

Material Description:

Our 20x0.5mm N52 discs are engineered for the most space-critical applications requiring a wide magnetic surface. The ultra-thin 0.5mm profile allows these magnets to be hidden behind thin veneers, within premium cardstock, or between layers of fabric without creating a visible bulge. The wide 20mm footprint provides an expansive surface area for adhesive bonding, ensuring the magnet stays securely anchored during repeated use in luxury packaging, apparel, or high-end portfolios.

Handling Advice: EXTREME CARE REQUIRED: These magnets are exceptionally fragile. Due to the large 20mm width and minimal 0.5mm thickness, they can snap or shatter with very little pressure. Never bend them or allow them to snap together from a distance. Always separate them by gently sliding them apart horizontally and handle with caution during installation.

Warnings and Safety Information:

• Fragility Hazard: These will shatter if dropped or allowed to snap together. Handle like thin glass.
• 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 at all times.
• Ingestion Warning: Swallowing multiple magnets can lead to severe internal complications.

Applications:

• "Invisible" magnetic closures for oversized luxury greeting cards, high-end portfolios, and boxes
• Ultra-slim mounting for retail signage and large-format lightweight graphics
• Seam-sealing and invisible fasteners for leathercraft and high-end garment applications
• Precision shimming and leveling in micro-mechanical systems where space is critical
• Low-profile sensor triggers for touch-sensitive electronic displays and tablets