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About This Item


Full Description

This Standard covers the complete general, dimensional, mechanical, and performance data for metric prevailing-torque hex nuts and hex flange nuts of property classes 5, 9, and 10 as defined in ASTM A563M. The inclusion of dimensional data in this Standard is not intended to imply that all of the nut sizes in conjunction with the various options described herein are stock items. Consumers should consult with suppliers concerning lists of stock production prevailing-torque hex and hex flange nuts.


Document History

  1. ASME B18.16M-2004 (R2021)


    Dimensional Requirements for Prevailing-Torque-Type Steel Metric Hex Nuts and Hex Flange Nuts

    • Most Recent
  2. ASME B18.16.2M-1979(R1995)

    Torque-Tension Test Requirements for Prevailing-Torque Type Steel Metric Hex Nuts and Hex Flange Nuts

    • Historical Version
  3. ASME B18.16.1M-1979 (R1995)

    Mechanical and Performance Requirements for Prevailing Torque-Type Steel Metric Hex Nuts and Hex Flange Nuts

    • Historical Version