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Thread Ring Calibration

Thread_Ring_Calibration alliance calibration.jpg


Up to 8 inches

4 to 80 TPI 


Minor Diameter not measured on Rings less than 1/4 inch.


Check out our Dimensional Calibration Page for more capabilities.




Alliance Calibration ISO 17025 accredited

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Standards followed:

  • ASME B1.2 Unified Inch Screw Threads
  • ASME B1.16M Metric Screw Threads
  • Mil Std 45662A
  • ISO 18025
  • Manufacturer Specifications
  • Customer Specifications