10mm x 4mm (25/64" x 5/32") Neodymium Disc Magnet – N52 Grade 

Key Features:

• Dimensions: 10mm Diameter × 4mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52
• Pull Force: Approx. 6.86 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized (Poles on the flat circular faces)
• Surface Gauss: Approx. 4,850 Gauss

Material Description:

Our 10x4mm N52 discs are designed for heavy-duty applications where a standard thin magnet is insufficient. The 4mm depth allows for a deep magnetic field that can penetrate through non-magnetic veneers, leather, or thick plastic housings. These are the premier choice for structural mounting, high-performance sensor triggers, and "invisible" heavy-duty latches in custom cabinetry and high-end automotive interior modifications.

Handling Advice: DANGER: These magnets possess significant snap velocity. With over 7 lbs of pull force, two magnets can snap together with enough speed to shatter the brittle neodymium core or cause painful skin pinches. Always handle one at a time and use a sliding motion to separate them from a stack. Use thick spacers for long-term storage.

Warnings and Safety Information:

• Pinch Hazard: Strong enough to cause blood blisters or skin pinches. Handle with a firm, steady grip.
• Choking Hazard: Keep strictly away from children and pets.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.
• Electronics: Keep away from hard drives, credit cards, and sensitive testing equipment.

Applications:

• Heavy-duty concealed latches for secret doors, panels, and large cabinetry
• Secure mounting for heavy tools, workshop organization, and knife racks
• Magnetic couplers for robotics and high-torque mechanical prototypes
• Industrial-strength 3D-printed enclosures and removable compartments
• High-performance proximity sensors and Hall effect triggers