Locking Anti Rotational Stackable Lug 1/0 Gauge 84-9192,Designed for stud battery terminals on trucks, buses and other vehicle applications,Exceeds SAE conductivity standards J163 and J1811,Made of 100% copper, tin plated twice as thick as industry standards,MagnaLugs are listed by UL Std. 486A & CUL US when applied with Hexcrimp 84-9082,MagnaLug® Connectors are superior to standard tube lugs,Up to 80% heavier wall than standard lugs,Wider pad for better electrical contact; thicker pad for greater strength and conductivity,