ASTM F2280-06
(Specification)Standard Specification for "Twist Off" Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 150 ksi Minimum Tensile Strength
Standard Specification for "Twist Off" Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 150 ksi Minimum Tensile Strength
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 A 325 or A 490 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 and , in sizes 1/2 to 1 1/8 in. inclusive, in two types specified in Section .
1.5 Tension control bolts manufactured and marked in accordance with the requirements of Specification A 490, 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.
The following precautionary statement pertains only to the test method portions, Sections and , 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.
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Designation: F 2280 – 06
Standard Specification for
“Twist Off” Type Tension Control Structural Bolt/Nut/Washer
Assemblies, Steel, Heat Treated, 150 ksi Minimum Tensile
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Strength
This standard is issued under the fixed designation F 2280; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
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1.1 This specification covers two types of heat treated, 2.1 ASTM Standards:
steel, tension control bolt-nut-washer assemblies, also referred A 194/A 194M Specification for Carbon and Alloy Steel
to as “sets,” having a tensile strength of 150 to 173 ksi. These Nuts for Bolts for High Pressure or High Temperature
assemblies are capable of developing a minimum predeter- Service, or Both
mined tension when installed by applying torque to the nut, A 490 Specification for Structural Bolts, Alloy Steel, Heat
whileatthesametimeapplyingacountertorquetoseparatethe Treated, 150 ksi Minimum Tensile Strength
splineendfromthebodyoftheboltusinganappropriatespline A 563 Specification for Carbon and Alloy Steel Nuts
drive installation tool. A 751 Test Methods, Practices, and Terminology for
1.2 An assembly consists of a tension control bolt with Chemical Analysis of Steel Products
splineend(coveredbythisspecification)andasuitablenutand D 3951 Practice for Commercial Packaging
washer covered by reference to applicable ASTM specifica- E 709 Guide for Magnetic Particle Examination
tions. E 1444 Practice for Magnetic Particle Testing
1.3 The fastener assemblies are intended for use in struc- F 436 Specification for Hardened Steel Washers
tural connections. These connections, installation procedures, F 606 Test Methods for Determining the Mechanical Prop-
and the use of alternate design structural bolts are covered erties of Externally and Internally Threaded Fasteners,
under the requirements of the “Specification for Structural Washers, and Rivets
Joints Using ASTM A 325 or A 490 Bolts”, approved by the F 788/F 788M Specification for Surface Discontinuities of
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Research Council on Structural Connections. Bolts, Screws, and Studs, Inch and Metric Series
1.4 The assemblies are available with either round (button F 1470 GuideforFastenerSamplingforSpecifiedMechani-
or dome) heads, heavy hex structural heads, or alternate design cal Properties and Performance Inspection
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heads described in Section 11 and Fig. 1, in sizes ⁄2 to 1 ⁄8 in. F 1789 Terminology for F16 Mechanical Fasteners
inclusive, in two types specified in Section 4. F 2328 Test Method for Determining Decarburization and
1.5 Tension control bolts manufactured and marked in Carburization in Hardened and Tempered Threaded Steel
accordance with the requirements of Specification A 490, and Bolts, Screws and Studs
conforming to the dimensional and other requirements of this G 101 Guide for Estimating the Atmospheric Corrosion
specification, will be considered an acceptable alternate under Resistance of Low-Alloy Steels
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this specification for two years following initial publication. 2.2 ASME Standards:
1.6 The following precautionary statement pertains only to B1.1 Unified Inch Screw Threads
the test method portions, Sections 15 and 16, of this Specifi- B1.3M Screw Threads Gaging Systems for Dimensional
cation: This standard does not purport to address all of the Acceptability—Inch and Metric Screw Threads
safety concerns, if any, associated with its use. It is the B18.2.6 Fasteners for Use in Structural Applications
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
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bility of regulatory limitations prior to use. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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This specification is under the jurisdiction of ASTM Committee F16 on the ASTM website.
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Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Withdrawn.
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Nuts, Rivets and Washers. Available from American Society of Mechanical Engineers (ASME), ASME
Current edition approved April 1, 2006. Published April 2006. International Headquarters, Three Park Ave., New York, NY 10016-5990.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F2280–06
A—These values are the same as the dimensions for heavy hex structural bolts specified in ASME B18.2.6.
B—The spline length (LS) and across the flat (S) dimensions are
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