GB/T 9074.9-1988
ActiveCross recessed countersunk head screw and countersunk serrated external toothed lock washer assemblies
十字槽沉头螺钉和锥形锁紧垫圈组合件
Application Summary AI generated
This standard specifies the dimensional, mechanical, and performance requirements for assemblies combining a cross-recessed countersunk head screw with a serrated external toothed lock washer. It is applied in mechanical and electronic product assembly where vibration resistance and a flush surface finish are needed, such as in automotive components, industrial machinery, and electrical enclosures. The standard ensures consistent locking force and prevents loosening under dynamic loads in threaded fastening applications.
Related Standards
GB/T 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers
GB/T 62.1-2004
Wing nuts--Round wing
GB/T 62.3-2004
Wing nuts--Pressing wing
GB/T 62.2-2004
Wing nuts--Square wing
GB/T 9074.5-2004
Cross recessed small pan head screw andwasher 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.