50mm x 5mm x Hole 6mm Neodymium Countersunk Magnet – N52 Grade 

Key Features:

• Dimensions: 50mm Outer Diameter × 5mm Thickness × 6mm Inner Hole Diameter
• Countersink Profile: Accommodates robust #10, #12, or M6 flathead wood/machine screws for flush mounting
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 45.5 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized (Poles on the flat circular faces, countersunk on the North face)

Material Description:

Our 50mm x 5mm countersunk N52 ring magnets provide an exceptionally strong, mechanically anchored fastening solution for the most demanding commercial, architectural, and industrial environments. The expansive 2-inch outer diameter maximizes lateral and shear stability, ensuring panels or heavy fixtures cannot warp or twist out of alignment. Featuring an integrated 6mm countersunk hole, it accommodates heavy-duty M6 or flathead anchor screws. Because the screw head drops perfectly flush within the recessed pocket, it permits uninterrupted metal-to-magnet surface contact, maximizing the available 74.5 lbs of holding force.

Handling Advice: EXTREME DANGER: Large industrial-scale countersunk magnets require strict, professional handling. With nearly 75 lbs of pull force, two magnets will attract with severe, bone-crushing velocity from several inches away. Impact will cause severe injuries and cause the brittle magnets to shatter into sharp fragments. Over-tightening installation screws with power tools can also cause the magnet to split or crack at its recessed center point—always hand-tighten with care.

Warnings and Safety Information:

• Severe Crush Hazard: High risk of serious skin pinching, blood blisters, or crushed bones. For professional use only.
• Fragility Hazard: Do not over-tighten screws. Extreme impact force from snapping together WILL shatter the ring wall.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.
• Electronics: Keep well away from hard drives, credit cards, and all sensitive electronic equipment.

Applications:

• Heavy-duty hidden closures for commercial security doors, hidden rooms, and large custom cabinetry
• Mechanical anchoring for massive removable wall partitions, acoustic panels, and architectural components
• High-vibration shop-tool organization, heavy equipment mounting, and custom workbench hold-downs
• Secure, screw-in fasteners for industrial modular retail displays, heavy signage, and exhibition frames
• Heavy-duty equipment enclosures and removable machine guarding plates