What is an A-490 bolt?

An A-490 bolt is classified as a high strength bolt. Specifically, it is a type of structural bolt that is made from a high-strength carbon steel and is heat treated to achieve superior mechanical properties. This type of bolt is commonly used in applications where high tensile strength is required, such as in structural steel connections for bridges, buildings, and other load-bearing structures.

A-490 bolts have a minimum yield strength of 65 ksi (kilopounds per square inch) and are designed to withstand significant loads and stresses, making them ideal for heavy construction applications. They are typically used in conjunction with high strength steel to ensure the integrity and safety of structural assemblies. Their ability to provide strong connections while being resistant to failure under load is what designates them as high strength.

Understanding the classification and properties of A-490 bolts is critical for ironworkers and engineers, as it affects design choices and the overall safety of constructed projects.