GB/T 39522-2020
ActiveMetric series wires for the pitch diameters of screw threads
螺纹中径米制系列量针
Application Summary AI generated
GB/T 39522-2020 specifies the dimensional and accuracy requirements for metric series wires used to measure the pitch diameters of screw threads. It is applied in precision metrology and quality control for threaded components, such as bolts, nuts, and gauges, ensuring consistent thread fit and interchangeability. This standard is primarily used by calibration laboratories and manufacturing facilities for thread inspection and verification.
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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.