Standard Specification for
Carbon and Alloy Steel Nuts
AASHTO Designation: M 291-06
ASTM Designation: A 563-04a
AASHTO M 291-06 is identical to ASTM A 563-04a except for the following provisions:
1.1. All references to the ASTM standards contained in ASTM A 563-04a, listed in the following table, shall be replaced with the corresponding AASHTO standard:
Referenced Standards
ASTM AASHTO
A 153 M 232M/M 232
A 194/A 194M M 292M/M 292
A 325 M 164
A490M M 253
A 709/A 709M M 270M/M 270
B 695 M 298
2.Replace Section 3.1.7 of ASTM A 563-04a with the following:
3. I.7 AASHTO designation and year of issue, and
3.Replace Note 3 of ASTM A 563-04a with the following:
Note 3-An example ofan ordering description follows: 1000 7/8-9 heavy hex nuts,
Grade C, hot-dip zinc-coated, AASHTO M 291-
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Click here to download AASHTO Designation: M 290-96 (2004) pdf free download
