SAE AS 8879D:2004
$25.35
Screw Threads – UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter
| Published By | Publication Date | Number of Pages |
| SAE | 2004-08-09 | 25 |
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:
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a
Screw threads – UNJ basic profile and design profiles.
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b
Standard series of diameter-pitch combinations for nominal thread diameters from 0.060 to 6.000 inches.
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c
Standard thread classes and form tolerances.
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d
Formulae for thread dimensions and tolerances.
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e
Method of designating UNJ threads.
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f
Tables for selected diameter-pitch combinations for close tolerance mechanical thread applications.
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g
Tables for screw thread – UNJ profile thread limit dimensions.
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