Dimensions: 8mm Diameter × 5mm Thickness (Approx. 5/16" × 13/64")
Corrosion-Resistant Coating: Premium Black Epoxy resin shell protects against moisture, salt spray, and oxidation
Intense Deep-Field Profile: Substantial 5mm thickness creates maximum magnetic volume for deeper flux penetration
Precision Tolerance: ±0.05mm
Magnet Grade: N52
Pull Force: Approx. 5.4 lbs
Magnetization: Axially magnetized (Poles on the flat circular faces)

Material Description:

Our 8mm x 5mm N52 black epoxy coated disc magnets provide a highly resilient, deep-field fastening solution for commercial, architectural, and marine environments exposed to wet conditions. Unlike standard triple-layer nickel plating which can oxidize or flake over time in damp environments, the continuous black epoxy finish forms an airtight shield over the rare-earth core. The considerable 5mm thickness provides deep magnetic field projection, allowing it to easily pull through thicker non-magnetic barriers like wood veneers, fiberglass, heavy plastics, or fabrics without losing its crisp "snap" closure. The matte black finish also ensures a professional, completely concealed or low-profile look for consumer hardware and industrial gear.

Handling Advice: DANGER: Strong N52 rare earth cylinders require precise handling. Sintered neodymium is inherently brittle like ceramic. At 5mm thickness, these compact magnets possess a high snap velocity and attract with over 5 lbs of raw force. High-velocity impact from snapping magnets together or colliding with steel surfaces can cause the core to chip, fracture, or breach the protective epoxy layer. Always separate individual pieces by sliding them off the stack rather than pulling apart vertically, and keep them spaced far apart during installation.

Warnings and Safety Information:

Pinch Hazard: Strong enough to cause sharp skin pinches or small blood blisters if handled carelessly in groups.
Brittle Core Warning: Core is brittle. Prevent high-impact collisions to avoid fracturing the magnet or chipping the protective resin coating.
CHOKING HAZARD: Compact size is a severe danger to children and pets. Keep strictly secured.
Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.

Applications:

Moisture-resistant hidden latches for marine cabinetry, outdoor enclosures, and humidor box lids
Concealed alignment closures for premium waterproof outerwear, tactical gear, and technical apparel
Deep-reach proximity sensor targets, miniature reed switch activations, and high-vibration Hall-effect setups
High-retention swappable component attachments and heavy weapons fixtures for high-end tabletop gaming
Heavy-duty inlay mounting points for thin 3D-printed outdoor equipment housing panels, battery doors, and lids