AASHTO - American Association of State Highway and Transportation Officials
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M 164-2005
Scope
This specification2 covers two types of quenched and tempered steel heavy hex structural bolts having a minimum tensile strength of 120 ksi for sizes 1.0 in. and less and 105 ksi for sizes over 1.0 to 1? in.@ inclusive.The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A 325 or A 490 Bolts@ approved by the Research Council on Structural Connections@ endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.3The bolts are furnished in sizes ? to 1? in.@ inclusive. They are designated by type@ denoting chemical composition as follows:NOTE 1??Bolts for general applications@ including anchor bolts@ are covered by Specification A 449. Also refer to Specification A 449 for quenched and tempered steel bolts and studs with diameters greater than 1? in. but with similar mechanical properties.NOTE 2??A complete metric companion to Specification A 325 has been developed??Specification A 325M; therefore@ no metric equivalents are presented in this specification.This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties@ see Specification A 449.Terms used in this specification are defined in Terminology F1789.The following safety hazard caveat pertains only to the test methods portion@ Section 10@ of this specification: This standard does not purport to address all of the safety concerns@ if any@ associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.* A Summary of Changes section appears at the end of this standard.2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-325 in Section II of that Code.3Published by American Institute of Steel Construction@One East Wacker Dr.@ Ste. 3100@ Chicago@ IL 60601-2001.
M 164-2005 history
2005M 164-2005 Standard Specification for High-Strength Bolts for Structural Steel Joints
2004M 164-2004 Standard Specification for High-Strength Bolts for Structural Steel Joints (ASTM Designation: A 325-02)
2003M 164-2003 Standard Specification for High-Strength Bolts for Structural Steel Joints (ASTM Designation: A 325-02)
2002M 164-2002 Standard Specification for High-Strength Bolts for Structural Steel Joints (HM-22: Part IA; ASTM Designation: A325-00)
1998M 164-1998 Standard Specification for High-Strength Bolts for Structural Steel Joints (Twentieth Edition; ASTM A325-96)
1995M 164-1995 Standard Specification for High-Strength Bolts for Structural Steel Joints (Eighteenth Edition; ASTM A325-94)
1994M 164-1994 Standard Specification for High-Strength Bolts for Structural Steel Joints