GB/T 837-1988
ActiveSlotted pan head screws with waisted shank
开槽盘头不脱出螺钉
Application Summary AI generated
This standard specifies the dimensions, technical requirements, and marking for slotted pan head screws with a waisted shank, designed to prevent the screw from fully detaching from the assembly. It is applied in mechanical and electronic equipment where captive fasteners are needed for frequent access panels or covers, such as in electrical enclosures, instrument housings, or machinery guards. The waisted shank allows the screw to remain loosely retained in the threaded hole after loosening, ensuring it does not fall out during maintenance or operation.
Related Standards
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 62.1-2004
Wing nuts--Round wing
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 62.4-2004
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.