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ASTM A325

2014 Edition, September 1, 2014

Complete Document

Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

Includes all amendments and changes through Change/Amendment , September 1, 2014


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Superseded By: ASTM F3125/F3125M

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Additional Comments:
W/D S/S BY ASTM F3125/F3125M
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Product Details:

  • Revision: 2014 Edition, September 1, 2014
  • Published Date: September 1, 2014
  • Status: Superseded By:
  • Superseded By: ASTM F3125/F3125M
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 8
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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 1½ in., inclusive.

The bolts are intended for use in structural connections. These connections are comparable to those covered under the requirements of the Specification for Structural Joints Using High-Strength Bolts, approved by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.

NOTE 1—Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 11⁄2 in. but with similar mechanical properties.

The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

NOTE 2—A complete metric companion to Specification A325 has been developed, Specification A325M; 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 A449.

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.

2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-325 in Section II of that Code.

*A Summary of Changes section appears at the end of this standard