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Connectors & form factors
M2 / M3
Metric screw thread sizes. M2 = 2 mm diameter, M3 = 3 mm. Standard PCB mounting hardware.
How it looks
Real image: CORE3588, rendered by KiCad from our board file
CORE3588 top-left corner: the two kinds of mounting hole on our board.
- 1MH5, an M2 chassis hole: 2.2 mm across, a bare hole with no copper, so a 2 mm screw slips through.
- 2MH1, one of four 2.7 mm holes for M2.5 spacers (a size between M2 and M3) that hold the computer module.
Real image: CORE3588, rendered by KiCad from our board file (angled 3D view)
KiCad 3D render, tilted.
- 1The same M2 hole, tilted: a clean hole through the bare board material.
How it works
Where it fits
Mounting holes appear in the drill file as unplated holes. Keep copper and parts clear of them, a basic DFM rule.