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ASTM A307-04e1

Historical Revision

Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength

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1.1 This specification covers the chemical and mechanical requirements of three grades of carbon steel bolts and studs in sizes 1/4 in. (6.35 mm) through 4 in. (104 mm). The fasteners are designated by "Grade" denoting tensile strength and intended use, as follows:

GradeDescription
Grade ABolts and studs having a minimum tensile strength of 60 ksi (414 MPa) and intended for general applications,
Grade BBolts and studs having a tensile strength of 60 to 100 ksi (414 to 690 MPa) and intended for flanged joints in piping systems with cast iron flanges, and
Grade CNonheaded anchor bolts, either bent or straight, having properties conforming to Specification A 36/A 36M (tensile strength of 58 to 80 ksi (400 to 550 MPa)) and intended for structural anchorage purposes.

1.1.1 The term studs includes stud stock, sometimes referred to as threaded rod.

1.2 This specification does not cover requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors or similar externally threaded fasteners.

1.3 Suitable nuts are covered in Specification A 563. Unless otherwise specified, the grade and style of nut for each grade of fastener, of all surface finishes, shall be as follows:

Fastener Grade and Size Nut Grade and StyleA
A, C, 1/4 to 1 1/2in.A, hex
A, C, over 1 1/2 to 4 in.A, heavy hex
B, 1/ 4 to 4 in.A, heavy hex
A Nuts of other grades and styles having specified proof load stresses (Specification A 563, Table 3) greater than the specified grade and style of nut are also suitable.

1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 Supplementary Requirement S1 of an optional nature is provided, which describes additional restrictions to be applied when bolts are to be welded. It shall apply only when specified in the inquiry, order, and contract.

1.6 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.


SDO ASTM: ASTM International
Document Number A307
Publication Date Aug. 1, 2004
Language en - English
Page Count 6
Revision Level 04e1
Supercedes
Committee F16.02
Publish Date Document Id Type View
Feb. 15, 2021 A0307-21 Revision
Oct. 1, 2014 A0307-14E01 Revision
Oct. 1, 2014 A0307-14 Revision
Dec. 1, 2012 A0307-12 Revision
Oct. 1, 2010 A0307-10 Revision
Dec. 1, 2007 A0307-07B Revision
Aug. 1, 2007 A0307-07A Revision
June 15, 2007 A0307-07 Revision
Aug. 1, 2004 A0307-04E01 Revision
Aug. 1, 2004 A0307-04 Revision
Oct. 1, 2003 A0307-03 Revision
Oct. 10, 2002 A0307-02 Revision
May 10, 2000 A0307-00 Revision
Not Available A0307-97 Revision
Not Available A0307-78 Revision