GB/T 152.4-1988
ActiveFasteners--Counterbores for hexagonbolts and nuts
紧固件 六角头螺栓和六角螺母用沉孔
Application Summary AI generated
This standard specifies the dimensions and tolerances for counterbores designed to accommodate hexagon bolts and nuts. It is applied in mechanical engineering and manufacturing contexts where fasteners must sit flush with or below the surface of a workpiece, such as in machinery assembly, automotive components, and structural connections. The standard ensures proper fit and clearance for hexagon-headed fasteners in counterbored holes.
Related Standards
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 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 3098.19-2004
Mechanical properties of fasteners--Blind rivets with break pull mandrel
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
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.