6mm x 3mm x Hole 2mm Neodymium Countersunk Magnet – N52 Grade | Precision Micro Screw-Mount Fastener

Key Features:

• Dimensions: 6mm Outer Diameter × 3mm Thickness × 2mm Inner Hole Diameter
• Countersink Profile: Accommodates standard M2 flathead micro wood/machine screws for flush mounting
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 1.3 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized (Poles on the flat circular faces, countersunk on the North or South face)

Material Description:

Our 6mm x 3mm countersunk N52 ring magnets are engineered specifically for intricate manufacturing and delicate fabrication projects where traditional adhesive bonding is impractical. The built-in 2mm countersunk hole allows the magnet to be securely anchored with an M2 micro screw into precision plastics, resins, or hardwoods. Because the flathead screw drops perfectly flush within the tiny recessed cavity, it permits uninterrupted metal-to-magnet surface contact, delivering a crisp, high-efficiency "snap" with zero clearance gaps.

Handling Advice: CRITICAL NOTICE: These micro countersunk magnets are exceptionally fragile. Sintered neodymium is inherently brittle like glass, and at this microscopic scale, the ring walls are thin. Over-tightening installation screws with manual or power drivers will instantly crack or split the magnet—always use extreme care and hand-tighten only. Due to their high snap velocity relative to their mass, prevent them from flying together freely to avoid shattering.

Warnings and Safety Information:

• Fragility Hazard: Highly brittle. Do not over-tighten screws. High impact from snapping together WILL fracture the micro ring wall.
• CHOKING HAZARD: Micro-sized profile poses a severe danger to children and pets. Keep strictly secured.
• Ingestion Warning: Swallowed magnets can attract through internal tissue, causing fatal complications. SEEK IMMEDIATE MEDICAL ATTENTION if ingested.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.

Applications:

• Ultra-low-profile hidden catches for luxury jewelry cases, small cosmetic boxes, and micro-cabinetry
• Mechanical anchoring for swappable component systems and miniature weapons configurations in high-end tabletop gaming
• Precision screw-in fasteners for delicate electronic housings, smart wearable tech, and sensory lids
• Concealed micro alignment tabs for low-clearance 3D-printed assemblies and instrumentation
• Secure mechanical mount targets for miniature robotic arms and drone hardware linkages