ASTM F2280 - 14

    Standard Specification for “Twist Off” Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 150 ksi Minimum Tensile Strength

    Active Standard ASTM F2280 | Developed by Subcommittee: F16.02

    Book of Standards Volume: 01.08


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    Abstract

    This safety specification is intended to reduce injuries and deaths of children from hazards associated with tipover of clothing storage units, it covers chests, drawer chests, chests of drawers, dressers, and bureaus only. The procedures for stability testing of the drawer are presented in details. During the test, the unit shall not tip over or be supported only by an opened drawer, opened door, or opened or unopened flap.This specification covers two types of heat treated, steel, tension control bolt-nut-washer assemblies, also referred to as "sets," having a tensile strength of 150 to 173 ksi. These assemblies are capable of developing a minimum predetermined tension when installed by applying torque to the nut, while at the same time applying a counter torque to separate the spline end from the body of the bolt using an appropriate spline drive installation tool. The tension control bolts are designated by type denoting chemical composition as follows: type 1 - alloy steel, and type 3 - weathering steel. The chemical composition of the tension control bolts, nuts, and washers shall conform to the requirements specified. The assembly lot tension test shall be performed on fastener assemblies to determine the ability of the assembly to provide the required minimum tension. Tensile strength, proof load, hardness, and carburization/decarburization shall be tested to meet the requirements prescribed.

    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 specification covers two types of heat treated, steel, tension control bolt-nut-washer assemblies, also referred to as “sets,” having a tensile strength of 150 to 173 ksi. These assemblies are capable of developing a minimum predetermined tension when installed by applying torque to the nut, while at the same time applying a counter torque to separate the spline end from the body of the bolt using an appropriate spline drive installation tool.

    1.2 An assembly consists of a tension control bolt with spline end (covered by this specification) and a suitable nut and washer covered by reference to applicable ASTM specifications.

    1.3 The fastener assemblies are intended for use in structural connections. These connections, installation procedures, and the use of alternate design structural bolts are covered under the requirements of the “Specification for Structural Joints Using ASTM or A490 Bolts”, approved by the Research Council on Structural Connections.

    1.4 The assemblies are available with either round (button or dome) heads, heavy hex structural heads, or alternate design heads described in Section 11 , in sizes 1/2 to 1 1/8 in. inclusive, in two types specified in Section 4.

    1.5 Tension control bolts manufactured and marked in accordance with the requirements of Specification A490, and conforming to the dimensional and other requirements of this specification, will be considered an acceptable alternate under this specification for two years following initial publication.

    1.6 The following precautionary statement pertains only to the test method portions, Sections 15 and 16, 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.


    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

    A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength

    A563 Specification for Carbon and Alloy Steel Nuts

    A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

    E709 Guide for Magnetic Particle Testing

    E1444 Practice for Magnetic Particle Testing

    F436 Specification for Hardened Steel Washers

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

    F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series

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

    F1789 Terminology for F16 Mechanical Fasteners

    F2328 Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts, Screws and Studs

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

    ASME Standards

    B18.2.6 Fasteners for Use in Structural Applications


    ICS Code

    ICS Number Code 21.060.01 (Fasteners in general)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/F2280-14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM F2280-14, Standard Specification for “Twist Off” Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 150 ksi Minimum Tensile Strength, ASTM International, West Conshohocken, PA, 2014, www.astm.org

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