GB/T 32076.9-2017
ActiveHigh-strength structural bolting assemblies for preloading—Part 9: Torshear type bolt with hexagon head with large width across flats，and nut assemblies
预载荷高强度栓接结构连接副 第9部分：扭剪型大六角头螺栓和螺母连接副
Application Summary AI generated
This standard specifies the dimensions, mechanical properties, and technical requirements for torshear-type bolts with hexagon heads and large width across flats, along with their mating nuts, used in high-strength structural bolting assemblies for preloading. It is applied in steel structure connections for construction and bridge engineering, where precise preload control is critical for joint integrity. The torshear design ensures reliable tightening by shearing off the spline at a specified torque, eliminating the need for torque wrenches in field assembly.
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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.