GB/T 3103.4-2014
ActiveTolerances for fasteners―Bolt/nut assemblies for service temperatures from －200℃～＋700℃
紧固件公差 -200℃～+700℃使用的螺栓-螺母连接副
Application Summary AI generated
This standard specifies the dimensional and geometric tolerances for bolt and nut assemblies intended for use in extreme temperature environments ranging from -200°C to +700°C. It is applied in the design, manufacturing, and quality inspection of fasteners for aerospace engines, cryogenic equipment, and high-temperature industrial machinery where thermal expansion and contraction affect joint integrity. The standard ensures reliable clamping force and interchangeability under these severe thermal conditions.
Related Standards
GB/T 9074.20-2004
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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 3098.19-2004
Mechanical properties of fasteners--Blind rivets with break pull mandrel
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
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.