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SAE J121 2013 Edition, January 1, 2013
Decarburization in Hardened and Tempered Unified Threaded Fasteners
Description / Abstract:
This SAE 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 J121 2013 Edition, January 1, 2013
Decarburization in Hardened and Tempered Unified Threaded Fasteners