Standard parts · fastener

Hex head bolts (ISO 4017)

ISO 4017 hex head bolts: 110 sizes. Dimensions: length, head diameter, across flats. Threads M3, M4, M5 and more. Use parts in kernelCAD Studio or MCP.

Front and top view of M10 × 50 hex head bolt (ISO 4017), 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	Length (mm)	Head diameter (mm)	Across flats (mm)	Head height (mm)	Shank diameter (mm)
M3 × 8 hex head bolt (ISO 4017)	M3	8	6.351	5.5	2	3
M3 × 10 hex head bolt (ISO 4017)	M3	10	6.351	5.5	2	3
M3 × 12 hex head bolt (ISO 4017)	M3	12	6.351	5.5	2	3
M3 × 16 hex head bolt (ISO 4017)	M3	16	6.351	5.5	2	3
M3 × 20 hex head bolt (ISO 4017)	M3	20	6.351	5.5	2	3
M3 × 25 hex head bolt (ISO 4017)	M3	25	6.351	5.5	2	3
M3 × 30 hex head bolt (ISO 4017)	M3	30	6.351	5.5	2	3
M4 × 8 hex head bolt (ISO 4017)	M4	8	8.083	7	2.8	4
M4 × 10 hex head bolt (ISO 4017)	M4	10	8.083	7	2.8	4
M4 × 12 hex head bolt (ISO 4017)	M4	12	8.083	7	2.8	4
M4 × 16 hex head bolt (ISO 4017)	M4	16	8.083	7	2.8	4
M4 × 20 hex head bolt (ISO 4017)	M4	20	8.083	7	2.8	4
M4 × 25 hex head bolt (ISO 4017)	M4	25	8.083	7	2.8	4
M4 × 30 hex head bolt (ISO 4017)	M4	30	8.083	7	2.8	4
M4 × 35 hex head bolt (ISO 4017)	M4	35	8.083	7	2.8	4
M4 × 40 hex head bolt (ISO 4017)	M4	40	8.083	7	2.8	4
M5 × 10 hex head bolt (ISO 4017)	M5	10	9.238	8	3.5	5
M5 × 12 hex head bolt (ISO 4017)	M5	12	9.238	8	3.5	5
M5 × 16 hex head bolt (ISO 4017)	M5	16	9.238	8	3.5	5
M5 × 20 hex head bolt (ISO 4017)	M5	20	9.238	8	3.5	5
M5 × 25 hex head bolt (ISO 4017)	M5	25	9.238	8	3.5	5
M5 × 30 hex head bolt (ISO 4017)	M5	30	9.238	8	3.5	5
M5 × 35 hex head bolt (ISO 4017)	M5	35	9.238	8	3.5	5
M5 × 40 hex head bolt (ISO 4017)	M5	40	9.238	8	3.5	5
M5 × 45 hex head bolt (ISO 4017)	M5	45	9.238	8	3.5	5
M5 × 50 hex head bolt (ISO 4017)	M5	50	9.238	8	3.5	5
M6 × 12 hex head bolt (ISO 4017)	M6	12	11.547	10	4	6
M6 × 16 hex head bolt (ISO 4017)	M6	16	11.547	10	4	6
M6 × 20 hex head bolt (ISO 4017)	M6	20	11.547	10	4	6
M6 × 25 hex head bolt (ISO 4017)	M6	25	11.547	10	4	6
M6 × 30 hex head bolt (ISO 4017)	M6	30	11.547	10	4	6
M6 × 35 hex head bolt (ISO 4017)	M6	35	11.547	10	4	6
M6 × 40 hex head bolt (ISO 4017)	M6	40	11.547	10	4	6
M6 × 45 hex head bolt (ISO 4017)	M6	45	11.547	10	4	6
M6 × 50 hex head bolt (ISO 4017)	M6	50	11.547	10	4	6
M6 × 55 hex head bolt (ISO 4017)	M6	55	11.547	10	4	6
M6 × 60 hex head bolt (ISO 4017)	M6	60	11.547	10	4	6
M8 × 16 hex head bolt (ISO 4017)	M8	16	15.011	13	5.3	8
M8 × 20 hex head bolt (ISO 4017)	M8	20	15.011	13	5.3	8
M8 × 25 hex head bolt (ISO 4017)	M8	25	15.011	13	5.3	8
M8 × 30 hex head bolt (ISO 4017)	M8	30	15.011	13	5.3	8
M8 × 35 hex head bolt (ISO 4017)	M8	35	15.011	13	5.3	8
M8 × 40 hex head bolt (ISO 4017)	M8	40	15.011	13	5.3	8
M8 × 45 hex head bolt (ISO 4017)	M8	45	15.011	13	5.3	8
M8 × 50 hex head bolt (ISO 4017)	M8	50	15.011	13	5.3	8
M8 × 55 hex head bolt (ISO 4017)	M8	55	15.011	13	5.3	8
M8 × 60 hex head bolt (ISO 4017)	M8	60	15.011	13	5.3	8
M8 × 70 hex head bolt (ISO 4017)	M8	70	15.011	13	5.3	8
M8 × 80 hex head bolt (ISO 4017)	M8	80	15.011	13	5.3	8
M10 × 20 hex head bolt (ISO 4017)	M10	20	18.475	16	6.4	10
M10 × 25 hex head bolt (ISO 4017)	M10	25	18.475	16	6.4	10
M10 × 30 hex head bolt (ISO 4017)	M10	30	18.475	16	6.4	10
M10 × 35 hex head bolt (ISO 4017)	M10	35	18.475	16	6.4	10
M10 × 40 hex head bolt (ISO 4017)	M10	40	18.475	16	6.4	10
M10 × 45 hex head bolt (ISO 4017)	M10	45	18.475	16	6.4	10
M10 × 50 hex head bolt (ISO 4017)	M10	50	18.475	16	6.4	10
M10 × 55 hex head bolt (ISO 4017)	M10	55	18.475	16	6.4	10
M10 × 60 hex head bolt (ISO 4017)	M10	60	18.475	16	6.4	10
M10 × 70 hex head bolt (ISO 4017)	M10	70	18.475	16	6.4	10
M10 × 80 hex head bolt (ISO 4017)	M10	80	18.475	16	6.4	10
M10 × 90 hex head bolt (ISO 4017)	M10	90	18.475	16	6.4	10
M10 × 100 hex head bolt (ISO 4017)	M10	100	18.475	16	6.4	10
M12 × 25 hex head bolt (ISO 4017)	M12	25	20.785	18	7.5	12
M12 × 30 hex head bolt (ISO 4017)	M12	30	20.785	18	7.5	12
M12 × 35 hex head bolt (ISO 4017)	M12	35	20.785	18	7.5	12
M12 × 40 hex head bolt (ISO 4017)	M12	40	20.785	18	7.5	12
M12 × 45 hex head bolt (ISO 4017)	M12	45	20.785	18	7.5	12
M12 × 50 hex head bolt (ISO 4017)	M12	50	20.785	18	7.5	12
M12 × 55 hex head bolt (ISO 4017)	M12	55	20.785	18	7.5	12
M12 × 60 hex head bolt (ISO 4017)	M12	60	20.785	18	7.5	12
M12 × 70 hex head bolt (ISO 4017)	M12	70	20.785	18	7.5	12
M12 × 80 hex head bolt (ISO 4017)	M12	80	20.785	18	7.5	12
M12 × 90 hex head bolt (ISO 4017)	M12	90	20.785	18	7.5	12
M12 × 100 hex head bolt (ISO 4017)	M12	100	20.785	18	7.5	12
M12 × 110 hex head bolt (ISO 4017)	M12	110	20.785	18	7.5	12
M12 × 120 hex head bolt (ISO 4017)	M12	120	20.785	18	7.5	12
M16 × 30 hex head bolt (ISO 4017)	M16	30	27.713	24	10	16
M16 × 35 hex head bolt (ISO 4017)	M16	35	27.713	24	10	16
M16 × 40 hex head bolt (ISO 4017)	M16	40	27.713	24	10	16
M16 × 45 hex head bolt (ISO 4017)	M16	45	27.713	24	10	16
M16 × 50 hex head bolt (ISO 4017)	M16	50	27.713	24	10	16
M16 × 55 hex head bolt (ISO 4017)	M16	55	27.713	24	10	16
M16 × 60 hex head bolt (ISO 4017)	M16	60	27.713	24	10	16
M16 × 70 hex head bolt (ISO 4017)	M16	70	27.713	24	10	16
M16 × 80 hex head bolt (ISO 4017)	M16	80	27.713	24	10	16
M16 × 90 hex head bolt (ISO 4017)	M16	90	27.713	24	10	16
M16 × 100 hex head bolt (ISO 4017)	M16	100	27.713	24	10	16
M16 × 110 hex head bolt (ISO 4017)	M16	110	27.713	24	10	16
M16 × 120 hex head bolt (ISO 4017)	M16	120	27.713	24	10	16
M16 × 130 hex head bolt (ISO 4017)	M16	130	27.713	24	10	16
M16 × 140 hex head bolt (ISO 4017)	M16	140	27.713	24	10	16
M16 × 150 hex head bolt (ISO 4017)	M16	150	27.713	24	10	16
M16 × 160 hex head bolt (ISO 4017)	M16	160	27.713	24	10	16
M20 × 40 hex head bolt (ISO 4017)	M20	40	34.641	30	12.5	20
M20 × 45 hex head bolt (ISO 4017)	M20	45	34.641	30	12.5	20
M20 × 50 hex head bolt (ISO 4017)	M20	50	34.641	30	12.5	20
M20 × 55 hex head bolt (ISO 4017)	M20	55	34.641	30	12.5	20
M20 × 60 hex head bolt (ISO 4017)	M20	60	34.641	30	12.5	20
M20 × 70 hex head bolt (ISO 4017)	M20	70	34.641	30	12.5	20
M20 × 80 hex head bolt (ISO 4017)	M20	80	34.641	30	12.5	20
M20 × 90 hex head bolt (ISO 4017)	M20	90	34.641	30	12.5	20
M20 × 100 hex head bolt (ISO 4017)	M20	100	34.641	30	12.5	20
M20 × 110 hex head bolt (ISO 4017)	M20	110	34.641	30	12.5	20
M20 × 120 hex head bolt (ISO 4017)	M20	120	34.641	30	12.5	20
M20 × 130 hex head bolt (ISO 4017)	M20	130	34.641	30	12.5	20
M20 × 140 hex head bolt (ISO 4017)	M20	140	34.641	30	12.5	20
M20 × 150 hex head bolt (ISO 4017)	M20	150	34.641	30	12.5	20
M20 × 160 hex head bolt (ISO 4017)	M20	160	34.641	30	12.5	20
M20 × 180 hex head bolt (ISO 4017)	M20	180	34.641	30	12.5	20
M20 × 200 hex head bolt (ISO 4017)	M20	200	34.641	30	12.5	20

Standard: ISO 4017
Category: fastener
Licence: MIT

How the catalog geometry was checked

Verified method: S3 sweep; checked, not proven
Verified threads: M3, M4, M5, M6, M8, M10, M12, M16, M20
Verified thread points: 9
Verified lengths: M10 20–100 mm; sampled 20, 50, 100 of 13
Verified length points: 3
Verified requirements: envelope bbox band, volume >= 1 mm^3
Verified boundaries: 0 (discrete domain)
Verified points: 12

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-4017-m3x8');

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