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    ASTM A563 / A563M - 21a

    Standard Specification for Carbon and Alloy Steel Nuts (Inch and Metric)

    Active Standard ASTM A563 / A563M | Developed by Subcommittee: F16.02

    Book of Standards Volume: 01.09


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    Abstract

    This specification covers chemical and mechanical requirements for eight property classes of hex and hex-flange carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts. Materials shall be tested and the individual grades shall conform to specified values of material such as hardness and proof load, chemical, and mechanical requirements. Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification2 covers chemical and mechanical requirements for eleven grades of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.

    Note 1: See Appendix X1 for guidance on suitable application of nut grades.

    1.2 The requirements for any grade of nut may, at the supplier's option, and with notice to the purchaser, be fulfilled by furnishing nuts of one of the stronger grades specified herein unless such substitution is barred in the inquiry and purchase order.

    1.3 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.

    1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

    1.5 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A194/A194M Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both

    A307 Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60000 PSI Tensile Strength

    A354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners

    A394 Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare

    A449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use

    A751 Test Methods and Practices for Chemical Analysis of Steel Products

    B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

    F606/F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets

    F812 Specification for Surface Discontinuities of Nuts, Inch and Metric Series

    F1136/F1136M Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners

    F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection

    F1554 Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength

    F1789 Terminology for F16 Mechanical Fasteners

    F1941/F1941M Specification for Electrodeposited Coatings on Mechanical Fasteners, Inch and Metric

    F2329/F2329M Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

    F2833 Specification for Corrosion Protective Fastener Coatings with Zinc Rich Base Coat and Aluminum Organic/Inorganic Type

    F3019/F3019M Specification for Chromium Free Zinc-Flake Composite, with or without Integral Lubricant, Corrosion Protective Coatings for Fasteners

    F3125/F3125M Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength

    F3148 Specification for High Strength Structural Bolt Assemblies, Steel and Alloy Steel, Heat Treated, 144ksi Minimum Tensile Strength, Inch Dimensions

    F3393 Zinc-Flake Coating Systems for Fasteners

    G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels

    ASME Standards

    ASME B1.13M Metric Screw Threads-M Profile

    ASME B1.1 Unified Screw Threads Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.

    ASME B18.2.2

    ASME B18.2.6 Fasteners for Use in Structural Applications

    ASME B18.2.6M Metric Fasteners for Use in Structural Applications

    SAE Standard

    SAE J995 Mechanical and Material Requirements for Steel Nuts


    ICS Code

    ICS Number Code 21.060.20 (Nuts)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/A0563_A0563M-21A

    Citation Format

    ASTM A563 / A563M-21a, Standard Specification for Carbon and Alloy Steel Nuts (Inch and Metric), ASTM International, West Conshohocken, PA, 2021, www.astm.org

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