SAE J121A-1976
DECARBURIZATION IN HARDENED AND TEMPERED THREADED FASTENERS

Standard No.

SAE J121A-1976

Release Date

1976

Published By

Society of Automotive Engineers (SAE)

Status

Be replaced 2013-02

Replace By

SAE J121-1983

Latest

SAE J121M-2013

Scope

This recommended practice covers methods for measuring, classifying, and specifying decarburization in the threaded section of hardened and tempered steel bolts, screws, studs, and similar parts. It is not intended to cover products which are specifically carburized to achieve special properties.

SAE J121A-1976 history

• 2013 SAE J121M-2013 Decarburization in Hardened and Tempered Metric Threaded Fasteners
• 2013 SAE J121-2013 Decarburization in Hardened and Tempered Unified Threaded Fasteners
• 1997 SAE J121M-1997 Decarburization in Hardened and Tempered Metric Threaded Fasteners
• 1997 SAE J121-1997 Decarburization in Hardened and Tempered Unified Threaded Fasteners
• 1996 SAE J121M-1996 Decarburization in Hardened and Tempered Metric Threaded Fasteners@ Recommended Practice (08-1996)
• 1996 SAE J121-1996 Decarburization in Hardened and Tempered Unified Threaded Fasteners@ Recommended Practice (08 1996)
• 1994 SAE J121M-1994 DECARBURIZATION IN HARDENED AND TEMPERED THREADED FASTENERS
• 1994 SAE J121-1994 DECARBURIZATION IN HARDENED AND TEMPERED THREADED FASTENERS
• 1983 SAE J121-1983 DECARBURIZATION IN HARDENED AND TEMPERED THREADED FASTENERS
• 1976 SAE J121A-1976 DECARBURIZATION IN HARDENED AND TEMPERED THREADED FASTENERS