GB/T 5780-2025
ActiveFasteners—Hexagon head bolts—Product grade C
紧固件 六角头螺栓 C级
Application Summary AI generated
GB/T 5780-2025 specifies the dimensions, technical requirements, and marking for hexagon head bolts of product grade C, which are characterized by larger tolerances and lower surface finish compared to higher grades. It is primarily applied in general mechanical assembly, construction, and structural applications where precision fit is not critical, such as in steel structures, agricultural machinery, and temporary fixtures. This standard ensures interchangeability and basic mechanical performance for low-stress, non-critical bolted connections in industrial and civil engineering contexts.
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GB/T 62.1-2004
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Mechanical properties of fasteners--Wing nuts with specified proof torque
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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.