Standard parts · fastener

Hex nuts (ISO 4032)

ISO 4032 hex nuts: 11 sizes. Dimensions: across flats, height. Threads M2, M2.5, M3 and more. Use parts in kernelCAD Studio or MCP.

Front and top view of M6 hex nut (ISO 4032), projected from the catalog STEP file. The catalog solid is simplified (no modeled thread or drive recess), so read dimensions from the table, not from the drawing.

Dimensions

Part	Thread	Across flats (mm)	Height (mm)
M2 hex nut (ISO 4032)	M2	4	1.6
M2.5 hex nut (ISO 4032)	M2.5	5	2
M3 hex nut (ISO 4032)	M3	5.5	2.4
M4 hex nut (ISO 4032)	M4	7	3.2
M5 hex nut (ISO 4032)	M5	8	4.7
M6 hex nut (ISO 4032)	M6	10	5.2
M8 hex nut (ISO 4032)	M8	13	6.8
M10 hex nut (ISO 4032)	M10	16	8.4
M12 hex nut (ISO 4032)	M12	18	10.8
M16 hex nut (ISO 4032)	M16	24	14.8
M20 hex nut (ISO 4032)	M20	30	18

Standard: ISO 4032
Category: fastener
Licence: MIT

How the catalog geometry was checked

Verified method: S3 sweep; checked, not proven
Verified threads: M2, M2.5, M3, M4, M5, M6, M8, M10, M12
Verified thread points: 9
Verified requirements: envelope bbox band, volume >= 1 mm^3
Verified boundaries: 0 (discrete domain)
Verified points: 9

Use a size in a model

Every size is a catalog part with a STEP solid and mate connectors. Use a code-CAD script, or ask an agent through the MCP fetch_part tool, by its part ID:

const part = await lib.fetchPart('iso-4032-m2');

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