GB/T 18230.2-2000
AbolishedHexagon bolts forhigh-strength structural bolting with large width across flats(short thread length)--Product grade C--Property classes 8.8 and 10.9
栓接结构用大六角头螺栓 短螺纹长度 C级 8.8和10.9级
Application Summary AI generated
This standard specifies the dimensions, technical requirements, and marking for large-width-across-flats hexagon bolts with short thread lengths in property classes 8.8 and 10.9, used in high-strength structural bolting. It is applied in steel structure connections for buildings, bridges, and heavy machinery where high clamping force and shear resistance are required, particularly in friction-type joints. The product grade C designation indicates it is intended for general engineering applications with moderate tolerances, not for precision assemblies.
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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.