GB/T 3103.2-1982
ActiveTolerances for fasteners--Bolts，screws and nuts for fine mechanics
紧固件公差 用于精密机械的螺栓、螺钉和螺母
Application Summary AI generated
This standard specifies the dimensional tolerances for bolts, screws, and nuts used in fine mechanical assemblies, such as precision instruments, optical devices, and miniature machinery. It ensures that these fasteners meet the strict fit and interchangeability requirements necessary for high-accuracy applications where standard commercial tolerances are insufficient. The standard is applied during the design, manufacturing, and quality inspection of fasteners for products like watches, cameras, and laboratory equipment.
Related Standards
GB/T 9074.5-2004
Cross recessed small pan head screw andwasher assemblies with plain washers
GB/T 62.3-2004
Wing nuts--Pressing wing
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 62.2-2004
Wing nuts--Square 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.