Structural Bolts

A structural bolt is a type of bolt designed for use in structural steel connections, primarily in construction and engineering applications where the integrity and safety of the structure are paramount. These bolts are typically larger and stronger than standard bolts and are specifically manufactured and tested to meet stringent standards for strength, durability, and performance. Key characteristics of structural bolts include: High Strength: Structural bolts are made from materials with high tensile strength, such as medium carbon steel or alloy steel, and are heat-treated to achieve the necessary mechanical properties. Preloading: They are designed to be used with a specified level of tension (preloading) to ensure a secure and tight connection. This preloading helps distribute loads evenly across the bolted joint. Unique Head Markings: Structural bolts often have unique head markings or symbols to indicate their grade, manufacturer, and compliance with industry standards, such as ASTM A325 or ASTM A490. Installation Procedures: Structural bolts are typically installed using specific torque values or with the use of a calibrated wrench to achieve the required tension in the bolt. Regular Inspection: Due to their critical role in structural connections, structural bolts require periodic inspection to ensure they maintain their integrity and tension. These bolts play a vital role in ensuring the safety and stability of buildings, bridges, towers, and other structures, and they are subject to rigorous quality control and testing procedures to meet industry standards and codes.