GRD copper bonded ground rods meet all the requirements of the world’s most rigorous standard such as UL-467,ANSI C-33-8,CE B-S10030250 .Carbon steel core coated with an electrolytic copper layer,which is minimum 99.9% pure with no trace of zinc.The copper layer is bonded to steel core through an electrolytic process ,which is the most advanced 4-dimensional continuous plating method,which ensures a perfect and even bonding between the copper and steel. The rod finishing is brilliant,free of imperfections or peelings. The main models: Model No.DiameterCopper ThicknessLength(ft) Thread Size Packing 126 1/2'' (12.7mm)10mil (0.254mm)6/101281/2''(12.7mm)10mil (0.254mm)8/105845/8''(14.2mm)10mil (0.254mm)4/105855/8''(14.2mm)10mil (0.254mm)5/105865/8''(14.2mm)10mil (0.254mm)6/105885/8'' (14.2mm)10mil (0.254mm)8/1058105/8'' (14.2mm)10mil (0.254mm)105/810584s5/8''(14.2mm)10mil (0.254mm)45/810585s5/8''(14.2mm)10mil (0.254mm)55/810586s5/8''(14.2mm)10mil (0.254mm)65/8105810s5/8''(14.2mm)10mil (0.254mm)105/8103453/4''(17.2mm)10mil (0.254mm)4/53463/4''(17.2mm)10mil (0.254mm)5/53483/4''(17.2mm)10mil (0.254mm)6/534103/4''(17.2mm)10mil (0.254mm)10/5345s3/4''(17.2mm)10mil (0.254mm)53/45346s3/4''(17.2mm)10mil (0.254mm)63/45348s3/4''(17.2mm)10mil (0.254mm)83/453410s3/4''(17.2mm)10mil (0.254mm)103/45