GB/T 18230.4-2000
AbolishedHexagon nuts for structural boltingwith large width across flats，style 1--Product grade B--Property class 10
栓接结构用1型大六角螺母 B级 10级
Application Summary AI generated
This standard specifies the dimensions, tolerances, and mechanical properties for hexagon nuts with large width across flats, style 1, product grade B, and property class 10. It is applied in structural bolting connections for steel structures, such as bridges, buildings, and heavy machinery, where high-strength fasteners are required to ensure reliable load transfer and joint integrity. The standard is used by manufacturers and engineers to produce and select nuts that match corresponding high-strength bolts in preloaded or tension-controlled assemblies.
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Hexalobular socket raised countersunk head screws
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Mechanical properties of fasteners--Blind rivets with break pull mandrel
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.