Standard Specification for
Quenched and Tempered Steel Bolts and Studs1
This trendy is issued below the constant designation a 449; the variety without delay following the designation shows the year of
original adoption or, in the case of revision, the 12 months of final revision. quite a number in parentheses indicates the yr of remaining reapproval. a
superscript epsilon (e) indicates an article trade since the ultimate revision or reapproval.
This widespread has been accepted for use through groups of the branch of defense
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click here to download Astm A447M – 93 (Reapproved 2003) pdf free