GB/T 9074.2-1988
ActiveCross recessed pan head screw andserrated lock washer external teeth assemblies
十字槽盘头螺钉和外锯齿锁紧垫圈组合件
Application Summary AI generated
This standard specifies the dimensional, mechanical, and performance requirements for assemblies combining cross recessed pan head screws with serrated lock washers featuring external teeth. It is applied in mechanical and electronic product assembly contexts where vibration resistance and secure fastening are critical, such as in automotive, appliance, and industrial equipment manufacturing. The serrated washer's external teeth bite into the mating surface to prevent loosening under dynamic loads.
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 62.2-2004
Wing nuts--Square wing
GB/T 62.3-2004
Wing nuts--Pressing wing
GB/T 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer 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.