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SAE AS8879D

Name: SAE AS8879D PDF | Request Standard
SKU: 7dbef44fcd2a

Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter

Standard by SAE International, 2024-04-05

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SAE AS8879D.PDFSecure PDF
SAE AS8879D.PDFOnline Access

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Language: English
License Type: Single User
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Language: English
License Type: Enterprise / Multi User
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About This Item

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: a Screw threads - UNJ basic profile and design profiles. b Standard series of diameter-pitch combinations for nominal thread diameters from 0.060 to 6.000 inches. c Standard thread classes and form tolerances. d Formulae for thread dimensions and tolerances. e Method of designating UNJ threads. f Tables for selected diameter-pitch combinations for close tolerance mechanical thread applications. g Tables for screw thread - UNJ profile thread limit dimensions. AS8879D has been reaffirmed to comply with the SAE Five-Year Review policy.

SKU: 7dbef44fcd2a

Publication Date: 2024-04-05

Standard Status: latest

Publisher: SAE International

Document Type: Aerospace Standard

Subject: Screws, , , , , , , ,

Official SAE: Doi link

This Version: AS8879D (2024-04-05)
Previous Version: AS8879C (2003-01-15)
Previous Version: AS8879B (2001-08-01)
Previous Version: AS8879A (1999-01-01)
Previous Version: AS8879 (1996-10-01)

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