GB/T 1338-1988
ActiveSelf-locking nuts，reduced hexagon oblate
小六角扁自锁螺母
Application Summary AI generated
GB/T 1338-1988 specifies the dimensions, technical requirements, and acceptance conditions for reduced hexagon oblate self-locking nuts. It is applied in mechanical assemblies where vibration resistance is critical, such as automotive, aerospace, and industrial machinery, to prevent loosening under dynamic loads. The standard ensures interchangeability and reliability in threaded fasteners used in high-stress or safety-sensitive environments.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.