SAE AS8879D
Current
The latest, up-to-date edition.
Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter
Hardcopy , PDF
English
05-04-2024
This SAE Aerospace Standard (AS) specifies the characteristics of screw threads - UNJ profile inch series, including a mandatory controlled radius as specified inTable 1at the root of the external thread.
DocumentType |
Standard
|
Pages |
25
|
PublisherName |
SAE International
|
Status |
Current
|
Supersedes |
This SAE Aerospace Standard (AS) specifies the characteristics of screw threads - UNJ profile inch series, including a mandatory controlled radius as specified in Table 1 at the root of the external thread. The minor diameter of both external and internal threads provides a basic thread height of .5625H to accommodate the external thread maximum root radius. The following detailed design requirements are included:aScrew threads - UNJ basic profile and design profiles.bStandard series of diameter-pitch combinations for nominal thread diameters from 0.060 to 6.000 inches.cStandard thread classes and form tolerances.dFormulae for thread dimensions and tolerances.eMethod of designating UNJ threads.fTables for selected diameter-pitch combinations for close tolerance mechanical thread applications.gTables for screw thread - UNJ profile thread limit dimensions.
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