GB/T 804-1988
ActiveHexagon nuts with raised face
球面六角螺母
Application Summary AI generated
GB/T 804-1988 specifies the dimensions, tolerances, and technical requirements for hexagon nuts with a raised spherical face. These nuts are used in mechanical assemblies where a self-aligning or compensating feature is needed to accommodate angular misalignment between the nut and the mating surface, such as in automotive suspensions, heavy machinery, and structural joints. The standard applies to the design and quality control of these fasteners in manufacturing and engineering contexts.
Related Standards
GB/T 62.1-2004
Wing nuts--Round wing
GB/T 62.2-2004
Wing nuts--Square wing
GB/T 62.3-2004
Wing nuts--Pressing wing
GB/T 9074.5-2004
Cross recessed small pan head screw andwasher assemblies with plain washers
GB/T 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers
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
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.