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Metric fine thread chart (ISO)

The ISO metric fine-pitch series - every published fine pitch for each nominal diameter, with pitch and minor diameters, tap drill and clearance holes.

Metric fine thread chart (ISO)

65 sizes · ThreadRef · sample of the first 8 rows

Metric fine thread chart (ISO). The ISO metric fine-pitch series - every published fine pitch for each nominal diameter, with pitch and minor diameters, tap drill and clearance holes.
SizePitch
mm
Pitch dia
mm
Minor dia
mm
Tap drill
mm
Clearance close
mm
Clearance normal
mm
Clearance loose
mm
Hex A/F
M6 × 0.750.755.5135.1885.256.46.6710 mm
M7 × 0.750.756.5136.1886.257.47.6811 mm
M8 × 0.750.757.5137.1887.258.491013 mm
M8 × 1.017.3516.91878.491013 mm
M10 × 0.750.759.5139.1889.2510.5111216 mm
M10 × 1.019.3518.918910.5111216 mm
M10 × 1.251.259.1888.6478.7510.5111216 mm
M12 × 1.0111.35110.918111313.514.518 mm

Dimensions per ISO 68-1 / ISO 262; clearance holes per ISO 273. ISO 262 / ISO 68-1.

Torque figures are estimates that depend on the stated nut-factor assumption. Verify against your fastener manufacturer's data and joint requirements before assembly.

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