Designing a printed enclosure and need the lid to snap shut every time? A 3×3×3mm N48 cube magnet drops into a square printed pocket mid-print or post-print with a drop of CA glue, snaps cleanly against its counterpart, and holds through normal handling — no disc slipping out of alignment.
Each piece measures exactly 3×3×3mm (approx. 1/8" × 1/8" × 1/8"), magnetized axially through one face. The square geometry seats flush in the full pocket opening, eliminating the rotational slop that lets a round disc shift polarity and lose grip. The triple-layer nickel coating delivers a smooth, non-scratching surface with solid corrosion resistance for indoor dry use. Max operating temperature 80°C (176°F); weight approx. 0.21 g per piece — light enough to embed in thin-walled prints without adding structural stress.
Common uses: snap-close lids on printed tool organizers, battery boxes, and display cases; detachable hatches on scale aircraft and N-gauge rolling stock; Hall effect and reed switch activations in electronics and maker builds. Also fits: lightweight latches for handmade craft boxes and paper craft assemblies; wargaming vehicle hull closures and magnetic storage tray attachments for tabletop miniatures; embedded closures in resin pours, scrapbook covers, and handmade packaging inserts.
N48 grade pull force reaches up to 1 lb per piece — firmer than N35, the common grade at this size. Two cubes face-to-face in opposing pockets hold against everyday opening force and separate easily by hand when needed. At 125 pieces per pack, there are enough to run a full build and keep spares for revisions or parallel projects.
Neodymium magnets can pinch skin if allowed to snap together. If swallowed, multiple magnets can attract across intestinal walls and cause serious internal injury — keep away from children. Keep away from pacemakers and implanted electronic devices. Not suitable for children under 14.