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unified_thread_standard

Unified Thread Standard (UTS)

 

  • Thread angle : 60 degrees
  • Pitch is measured in Thread Per Inch (TPI)
  • Similar to ISO metric thread, but is measured in inches, rather than millimetres
  • UNC - Coarse Series, UNF - Fine Series, UNEF - Extra Fine Series

 

Representation

<Nominal or Major Diameter><Pitch in TPI><UNC/UNF/UNEF><Tolerance Class>

Eg.

6-32 UNC 2B (major diameter: 0.1380 inch, pitch: 32 tpi)

 

See Also

Wikipedia

eFunda -UNC Table,UNF Table,UNEF Table