Title: ASTM A307-21, "Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60000 PSI Tensile Strength."

Author(s): ASTM Subcommittee F16.02 on Steel Bolts, Nuts, Rivets and Washers

Publication: Commentary Reference

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DOI:

Date: 4/1/2021

Abstract:
This specification covers the chemical and mechanical requirements for three grades (Grades A, B, and C) of carbon steel bolts and studs in specified sizes. This specification does not cover the requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors, or other similar externally threaded fasteners. When tested, sampled specimens shall adhere to specified values for chemical composition, hardness, tensile strength, yield point, elongation, and dimensions.