BFI Earth Rods are made from high tensile-low carbon steel compling with requirements of BS 4360 Grade 43 A. Each rod is molecularly bonded by 99.99% pure, high conductivity copper bondings, each rod is treated with Benzol-triozole derivatives. Threads on rods are formed by roll threading process, giving threads extra strength, eliminating risk of chipping the threads while driving the rods in the ground. Rod Dimension (mm) Diameter of Threads Actual Rod Dia. (mm) Component No. 09.5 x 1200 unthreaded 09.5 CCBR-9512 14.5 x 1200 9/16" 12.5 CCBR-1412 14.5 x 1500 9/16" 12.5 CCBR-1415 14.5 x 1800 9/16" 12.5 CCBR-1418 16.0 x 1200 5/8" 14.2 CCBR1612 16.0 x 1500 5/8" 14.2 CCBR-1615 16.0 x 1800 5/8" 14.2 CCBR-1618 16.0 x 2400 5/8" 14.2 CCBR-1624 20.0 x 1200 3/4" 17.2 CCBR-2012 20.0 x 1500 3/4" 17.2 CCBR-2015 20.0 x 1800 3/4" 17.2 CCBR-2018 20.0 x 2400 3/4" 17.2 CCBR-2024 25.0 x 2400 unthreaded 25.4 CCBR-2524 25.0 x 3000 unthreaded 25.4 CCBR-2530