GB/T 5779.3-2000
ActiveFasteners--Surface discontinuities--Bolts，screws and studs for special requirements
紧固件表面缺陷 螺栓、螺钉和螺柱 特殊要求
Application Summary AI generated
This standard specifies the types, limits, and inspection methods for surface discontinuities (such as cracks, folds, and seams) on bolts, screws, and studs intended for critical applications where high reliability is required. It is applied in industries like aerospace, automotive, and heavy machinery to ensure fasteners meet stringent quality requirements beyond general commercial use. The standard is used during manufacturing quality control and incoming inspection to reject parts with unacceptable surface flaws that could compromise joint integrity under high stress or fatigue conditions.
Related Standards
GB/T 62.1-2004
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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 62.2-2004
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 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.