AASHTO M 253-2002 Standard Specification for Heat-Treated Steel Structural Bolts, 150 ksi Minimum Tensile Strength HM-22; PART IA; ASTM Designation: A 490-00
The American Road & Transportation Builders Association
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AASHTO M 253-2003
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AASHTO M 253-2003
AASHTO M 253-2002 history
0000 AASHTO M 253-2003
2002AASHTO M 253-2002 Standard Specification for Heat-Treated Steel Structural Bolts, 150 ksi Minimum Tensile Strength HM-22; PART IA; ASTM Designation: A 490-00