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Description of ASTM-F3125/F3125M 2025ASTM F3125/F3125M-25Active Standard: Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi, 144 ksi, and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile StrengthASTM F3125/F3125MScope 1.1 This specification covers chemical, physical and mechanical requirements for quenched and tempered bolts manufactured from steel and alloy steel, in inch and metric dimensions, in two strength grades, two types and two styles. 1.1.1 This specification was originally issued as a consolidation and replacement of six structural bolting ASTM standards, including; A325, A325M, A490, A490M, F1852 and F2280. One additional fastener grade, 144 ksi, is added with two types and two styles for inch series only. 1.2 Intended Use: 1.2.1 Bolts manufactured under this specification are intended for use in structural connections covered in the Specification for Structural Joints Using High-Strength Bolts, as approved by the Research Council on Structural Connections. 1.2.2 Grade A325 and Grade A490 Heavy Hex style in this specification are furnished in sizes 1/2 to 1 1/2 in. inclusive. 1.2.3 Grade A325M and Grade A490M Heavy Hex styles are furnished in sizes from M12 to M36 inclusive. 1.2.4 Grade F1852 and Grade F2280 Twist-Off style assemblies are furnished in sizes 1/2 to 1 1/4 in. inclusive. 1.2.5 Grade 144 Twist-Off style assemblies and Heavy Hex style are furnished in sizes 1/2 to 1 1/4 in. inclusive. 1.3 Classification, Table 1: 1.3.1 Bolts are designated by grade, which indicates inch or metric strength and style. 1.3.2 Bolts are designated by type denoting raw material chemical composition. 1.3.3 Bolts are designated by style denoting Heavy Hex bolts or “Twist-Off” style assemblies. 1.4 Terms used in this specification are defined in F1789. 1.5 Units—The values stated in either SI units or inch pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.6 Table footnotes are requirements. Notes are advisory. 1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Keywords alloy steel; alternate design fasteners; bolts; carbon steel; fasteners; Heavy Hex Bolt; Heavy Hex Nut; inch; metric; spline end; steel; structural; structural bolts; Twist-Off style bolt; weathering steel; ICS Code ICS Number Code 21.060.10 (Bolts, screws, studs) DOI: 10.1520/F3125_F3125M-25 The following editions for this book are also available...
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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