GB/T 8-2021
ActiveSquare head bolts—Product grade C
方头螺栓 C级
Application Summary AI generated
GB/T 8-2021 specifies the dimensions, technical requirements, and marking for square head bolts of product grade C, which are characterized by larger tolerances and lower surface finish compared to higher grades. This standard is applied in general mechanical assembly, construction, and low-stress fastening applications where precise alignment is not critical, such as in agricultural machinery, temporary structures, or non-critical industrial equipment. It is commonly used in procurement and quality inspection contexts for bolts intended for less demanding load-bearing or non-vibration environments.
Related Standards
GB/T 62.2-2004
Wing nuts--Square wing
GB/T 62.3-2004
Wing nuts--Pressing wing
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 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.