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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

04-08-2021

Publisher

American Society for Testing and Materials

1.1This specification2 covers the chemical and mechanical requirements of two grades of carbon steel bolts and studs in sizes ¹/₄in. through 4 in. The fasteners are designated by “Grade” denoting tensile strength and intended use, as follows:

Grade	Description

Grade A	Bolts, studs, and threaded rod having a minimum tensile strength of 60 ksi and intended for general applications,
Grade B	Bolts, studs, and threaded rod^A having a tensile strength of 60 to 100 ksi and intended for flanged joints in piping systems with cast iron flanges, and
Grade C	Replaced by Specification F1554 Gr.36

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

1.3Suitable nuts are covered in Specification A563. 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 Style^A
A ¹/₄to 1¹/₂in.	A, hex
A over 1¹/₂to 4 in.	A, heavy hex
B, ¹/₄to 4 in.	A, heavy hex

1.4The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.5Supplementary 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.

1.6Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.

1.7This 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.

Committee	F 16
DocumentType	Standard
Pages	6
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM A 307 : 2014 : EDT 1

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