GB/T 31.3-2025
ActiveFasteners—Hexagon head bolts with split pin hole on shank—Part 3: Fine pitch thread
紧固件 六角头螺杆带孔螺栓 第3部分：细牙螺纹
Application Summary AI generated
This standard specifies the dimensional, mechanical, and performance requirements for hexagon head bolts with a split pin hole on the shank and fine pitch threads. It is applied in mechanical assemblies and structural connections where vibration resistance is critical, such as in automotive, aerospace, and heavy machinery, ensuring secure fastening in high-stress or precision-threaded applications.
Related Standards
GB/T 62.3-2004
Wing nuts--Pressing wing
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 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers
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
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.