GB/T 1231-2006
AbolishedSpecifications of high strength bolts with large hexagon head,large hexagon nuts,plain washers for steel structures
钢结构用高强度大六角头螺栓、大六角螺母、垫圈技术条件
Application Summary AI generated
This standard specifies the technical requirements, dimensions, marking, and acceptance criteria for high-strength bolts with large hexagon heads, large hexagon nuts, and plain washers used in steel structures. It is applied in the construction and manufacturing of steel buildings, bridges, towers, and other heavy steel frameworks where high-strength bolted connections are critical for load-bearing and structural integrity. The standard ensures consistent performance and compatibility of these fasteners in both fabrication and on-site assembly contexts.
Related Standards
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 62.2-2004
Wing nuts--Square wing
GB/T 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers
GB/T 62.3-2004
Wing nuts--Pressing wing
GB/T 3098.20-2004
Mechanical properties of fasteners--Wing nuts with specified proof torque
GB/T 62.4-2004
Wing nuts--Die-casting wing
GB/T 3098.19-2004
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.