N50 Neodymium Countersunk Disc Magnets 12x3mm (1/2 x 1/8 inch) – 3mm Screw Hole, up to 7.3 lbs Pull, Ni-Cu-Ni Coated Rare Earth Flush-Mount Magnets

N50 Neodymium Countersunk Disc Magnets 12x3mm (1/2 x 1/8 inch) – 3mm Screw Hole, up to 7.3 lbs Pull, Ni-Cu-Ni Coated Rare Earth Flush-Mount Magnets

FLUSH-MOUNT HOLDING POWER – N50 rare earth provides up to 7.3 lbs pull — enough to keep cabinet doors, box lids, and drawer covers shut with a firm, tactile snap; no external latch required SCREW-SECURE INSTALLATION – 3mm countersunk hole accepts a #3 flat-head screw, locking each magnet in wood, MDF, plywood, or 3D-printed plastic; screw head recesses flush for a zero-protrusion finish VERSATILE APPLICATIONS – Ideal for hidden cabinet and drawer closures, handmade box latches, picture frame catches, sign and display mounting, tool holders, and concealed closures in 3D-print projects PACK CONTENTS – 50 countersunk discs, 12mm × 3mm, 3mm center hole, single axial orientation. Ni-Cu-Ni triple-layer coating for indoor corrosion resistance. Use with a #3 flat-head screw (not included) N50 SPEC ADVANTAGE – At this 12×3mm size, N50 grade delivers measurably more pull than standard N35–N42. That difference converts a loose-fitting lid into a firm, audible closure without mechanical hardware When a cabinet door needs to stay shut without a visible latch, or a handmade box needs a closure that snaps firmly and releases cleanly, a screw-mounted magnet is the right solution — but only if it holds. These N50 neodymium countersunk discs are built for exactly that job.
Each magnet is 12mm in diameter and 3mm thick, with a conical countersunk hole for a #3 flat-head screw (screw not included). Once fastened, the screw head recesses flush with the magnet face, integrating invisibly into wood, MDF, or 3D-printed plastic. Axial magnetization directs the full pull force through the flat face — straight toward the steel plate or opposing magnet across the closure gap.
The triple-layer Ni-Cu-Ni coating protects the neodymium core from oxidation and surface chipping. Rated for dry indoor environments; avoid prolonged moisture exposure. Operating temperature up to 80 °C.
Common applications include cabinet and drawer closures, handmade book and journal latches, display case catches, wall-mounted tool holders, removable access panels, modular furniture alignment, and escape room prop mechanisms. For sign and display mounting where flush hardware is required, these fasten securely to wood backing boards or foam-core substrates with a single screw.
Since all 50 pieces share a single axial orientation, build a two-magnet closure by rotating the second magnet 180° before fastening — opposing faces will attract. For an alignment-tolerant closure, pair each magnet with a steel washer at least 24mm in diameter; the magnet grips anywhere across the washer face.
Safety: neodymium magnets are brittle — do not overtighten the mounting screw. Keep away from pacemakers, hearing aids, and electronic devices. Pinching hazard. Not suitable for children under 14.