GB/T 28257-2012
Activelong shank nut taps
长柄螺母丝锥
Application Summary AI generated
GB/T 28257-2012 specifies the dimensions, tolerances, and technical requirements for long shank nut taps used in the high-volume production of threaded nuts. It applies primarily to the manufacturing of fasteners, where these taps are employed in automated tapping machines to cut internal threads in nut blanks. The standard ensures interchangeability and consistent thread quality across industrial fastener production lines.
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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.