Astm 307a Jun 2026

(often marked as 307A ) is a standard specification for medium-strength carbon steel fasteners, including headed bolts, studs, and threaded rods. It is widely considered the "everyday" or "run-of-the-mill" bolt specification for non-critical, general-purpose applications. Key Specifications

defines the features of a standard carbon steel fastener that is ductile , economical , and suitable for general purpose (Grade A) or flange/structural (Grade B) applications where the extreme high strength of quenched and tempered bolts is not required.

In the vast world of industrial fasteners, few specifications are as ubiquitous and dependable for everyday applications as . As a standard developed by ASTM International, it defines the chemical and mechanical requirements for carbon steel bolts, studs, and threaded rods. astm 307a

It stipulates the methods and frequency of testing and inspection to verify that the fasteners meet the specified requirements.

Commonly utilized as carriage bolts or timber bolts for wooden structures and docks. (often marked as 307A ) is a standard

Different Bolt Grades and Their Applications - Wilson-Garner

Specifies similar fasteners but with a minimum tensile strength of 60,000 psi and a minimum yield strength of 36,000 psi. Grade B fasteners are generally used in flanges, piping, and pressure vessels. In the vast world of industrial fasteners, few

Bolts less than 3 times their diameter in length are often tested for Rockwell hardness, generally ranging between 4. Typical Applications of ASTM A307 Grade A