Technical specifications and scope of the ANSI/ASME B18.2.3.7M standard
This standard regulates the metric parameters and design requirements for heavy hex bolts approved as an American National Standard. This regulatory and technical documentation establishes strict tolerances and geometric characteristics of products, ensuring their interchangeability and reliability in high-load assemblies.
It is important to note that the presence of sizes in the standard specification does not guarantee their constant availability in warehouse programs. To optimize procurement processes, engineers and procurement specialists are advised to send inquiries to EV Group China to clarify the current range of heavy structural bolts available for supply.
When designing joints and selecting fasteners, it must be taken into account that heavy hex structural bolts must fully comply not only with the requirements of ASME B18.2.3.7M but also with the additional provisions of Appendix 111, which regulate the performance properties of products under critical operating conditions.