Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength
|Publication Date:||1 October 2014|
|ICS Code (Bolts, screws, studs):||21.060.10|
This specification2 covers the chemical and mechanical requirements of two grades of carbon steel bolts and studs in sizes 1⁄4 in. through 4 in. The fasteners are designated by "Grade" denoting tensile strength and intended use, as follows:
A Threaded rod is not usually produced to Grade B, but can be when specified by the purchaser.
This specification does not cover requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors or similar externally threaded fasteners.
Suitable 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:
A Nuts of other grades and styles having specified proof load stresses (Specification A563, Table 3) greater than the specified grade and style of nut are also suitable.
The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
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.
Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.
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.
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-307 in Section II of that Code.
*A Summary of Changes section appears at the end of this standard