GB/T 17880.4-1999
Active120° Small countersunk head riveted nuts
120°小沉头铆螺母
Application Summary AI generated
GB/T 17880.4-1999 specifies the dimensions, materials, and technical requirements for 120° small countersunk head riveted nuts, which are designed for blind fastening applications where a low-profile, flush-mounted nut is required. This standard is applied in the assembly of thin-walled components, such as sheet metal enclosures, automotive panels, and electronic equipment housings, where access is limited to one side. It ensures compatibility and reliability in mechanical systems requiring a 120° countersunk head for a smooth surface finish.
Related Standards
GB/T 62.1-2004
Wing nuts--Round 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 62.2-2004
Wing nuts--Square wing
GB/T 62.3-2004
Wing nuts--Pressing wing
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.