GB/T 32076.7-2015
ActiveHigh-strength structural bolting assemblies for preloading—Part 7: M39~M64—Hexagon bolt with large width across flats and nut assemblies
预载荷高强度栓接结构连接副 第7部分：M39~M64 大六角头螺栓和螺母连接副
Application Summary AI generated
This standard specifies the technical requirements, dimensions, and performance criteria for large-size (M39 to M64) high-strength hexagon bolt and nut assemblies with large width across flats, used for preloaded structural connections. It is applied in heavy-duty steel structures such as large-span bridges, high-rise buildings, and industrial plants where high clamping force and reliable load transfer are critical. The standard ensures these oversized bolting assemblies meet the necessary strength and tightening specifications for safe, long-term structural integrity under high stress.
Related Standards
GB/T 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers
GB/T 62.3-2004
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GB/T 62.2-2004
Wing nuts--Square wing
GB/T 9074.5-2004
Cross recessed small pan head screw andwasher assemblies with plain washers
GB/T 62.1-2004
Wing nuts--Round wing
GB/T 62.4-2004
Wing nuts--Die-casting wing
GB/T 3098.20-2004
Mechanical properties of fasteners--Wing nuts with specified proof torque
GB/T 3098.19-2004
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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.