Double-arming bolts play a crucial role in enhancing the structural integrity of pole line constructions by effectively "unitizing" two crossarms when additional strength is required. Known within the industry as D A bolts, these fasteners boast a robust rated tensile strength of 12,400 lbs., ensuring a secure and dependable connection in aerial hardware and pole applications. Manufactured from high-quality steel and galvanized according to ASTM A-153 standards, they are built to withstand harsh environmental conditions while complying with ANSI C135.1 requirements. Each bolt is designed with full-thread and cone pointed ends, facilitating efficient installation, and comes complete with four square nuts for ease of use in various configurations.