1,Fashion design, compacted structure, 2,Easy installation,Energy-saving 3,Excellent quality and competitive price High Strength Bolt 1)High quality of the Bolt2)Stable structure3).Standard :DIN,ANSI/ASME,BS,AS 4).Surface:Plain,Zinc plated,Black,Hot galvanized5)Certificate: ISO90016)Prompt quote & Leadtime guarantee High Strength LJ Brand Nuts for overhead line