GB/T 802.4-2009
ActiveHexagon cap nuts - Welding type
六角低球面盖形螺母 焊接型
Application Summary AI generated
GB/T 802.4-2009 specifies the dimensions, technical requirements, and marking for hexagon cap nuts with a low spherical dome that are designed for welding attachment. It is applied in mechanical and structural assemblies where a permanently fixed, sealed nut is needed, such as in automotive frames, heavy machinery, or steel structures, to prevent loosening under vibration and to protect exposed threads.
Related Standards
GB/T 9074.5-2004
Cross recessed small pan head screw andwasher assemblies with plain washers
GB/T 62.1-2004
Wing nuts--Round 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 62.3-2004
Wing nuts--Pressing 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.