"HEX" copper bonded earth rod are made from low carbon steel of grade BS 970 or AIS11018 with a high tensile strength of atleast 600 N/mm2 . Low carbon steel core are molecularly tended with 99.9% pure electrolytic copper. Salient Features Perfectly bonded rod will lost longer, drive easier and will not crack. Corrosion resistance while providing tee lowest resistance to ground. Threads are rolled by roll threading process, which ensures teat an wen copper covers is maintained, wen at the root of the thread. Roll thread gives greater strength than cut thread. Thread rolling process raises the surface of the rod, so teat Thread dia. (T) is greater than Shank dia. (S). DIMENSIONS ROD SIZE (DIA x LENGTH)ACTUAL ROD DIA. 'S' in MMTHREAD DIA. 'T' in MMPRODUCT CODE 9.5 x 1200 (UN-THREADED) 9.5 - HBR 012 9.5 x 1800 (UN-THREADED) 9.5 - HBR 018 14 x1200 12 14 HBR 1412 14 x1500 12 14 HBR 1415 14x1800 12 14 HBR 1418 14x2000 12 14 HBR 1420 14x2400 12 14 HBR 1424 5/8"x4'or16mm x1200 14.2 5/8'' HBR 112 5/8"x5'or16mm x1500 14.2 5/8'' HBR 115 5/8"x6'or16mm x1800 14.2 5/8'' HBR 118 5/8'' x 8'or 16 mm x 2400 14.2 5/8'' HBR 124 5/8'' x 10'or 16 mm x 3000 14.2 5/8'' HBR 130 5/8''x 4or16mm x1200 16 5/8'' HBR 312 5/8 x 5 or 16 mm x 1500 16 5/8'' HBR 315 5/8 x 6 or 16 mm x 1800 16 5/8'' HBR 318 3/4''x 4 or 19 mm x 1200 17.2 3/4'' HBR 212 3/4''x 5 or 19 mm x 1500 17.2 3/4'' HBR 215 3/4''x6 or 19mm x 1800 17.2 3/4'' HBR 218 3/4''x8 or 19mm x 2400 17.2 3/4'' HBR 224 3/4''x10 or 19 mm x 3000 17.2 3/4'' HBR 230