Metric Thread (M) Dimensions & Tolerances
Enter the nominal diameter and pitch to automatically calculate the theoretical dimensions and limit deviations for standard 6H (Internal) and 6g (External) metric threads.
mm
mm
Tolerance Classes
This calculator uses standard classes:
Internal Thread: 6H (Standard Nut)
External Thread: 6g (Standard Bolt)
Basic Theoretical Dimensions
Major Diameter (D / d)
- mm
Pitch Diameter (D₂ / d₂)
- mm
Minor Diameter (D₁ / d₁)
- mm
Internal Thread Limits (6H)
Major Dia Limit (D)
- ~ Not spec'd
Pitch Dia Limit (D₂)
- ~ - mm
Minor Dia Limit (D₁) *Pre-drill
- ~ - mm
External Thread Limits (6g)
Major Dia Limit (d)
- ~ - mm
Pitch Dia Limit (d₂)
- ~ - mm
Minor Dia Limit (d₁)
- ~ Not spec'd
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