GB/T 821-1988
AbolishedSquare set screws with chamfered end
方头倒角端紧定螺钉
Application Summary AI generated
This standard specifies the dimensions, technical requirements, and marking of square set screws with chamfered ends. It is applied in mechanical assembly and fastening systems where screws are used to secure components by applying torque through a square drive, such as in machinery, equipment, and structural joints requiring reliable axial or radial fixation.
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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.