GB/T 800-2020
ActiveCountersunk head double nib bolts
沉头双榫螺栓
Application Summary AI generated
GB/T 800-2020 specifies the dimensions, tolerances, and technical requirements for countersunk head double nib bolts, which feature a countersunk head and two nibs under the head to prevent rotation during assembly. This standard is applied in mechanical engineering and structural connections where a flush surface is required, such as in railway equipment, automotive assemblies, or heavy machinery, ensuring secure fastening in applications with limited clearance or vibration. It is used by manufacturers and quality inspectors to verify bolt conformity in production and procurement.
Related Standards
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GB/T 9074.5-2004
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GB/T 3098.20-2004
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GB/T 62.4-2004
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GB/T 3098.19-2004
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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.