Rod To Tape Type ‘U’ Bolt Double Plate Clamps are designed to join various sizes of conductor tape to the earth electrode. Features: Material: High Strength Copper Alloy (body), 99.9% HD Copper (‘U’ bolt) Standard: BS:EN 62561-1 Class H, BS 7430 Tightening torque: 12Nm More Information: The clamps have a high resistance to corrosion and are mechanically strong to ensure a lasting connection. For installing lightning earthing system applications, We recommend the use of Copper earth electrode systems due to their inherent low resistivity and corrosion resistance. Materials used in earthing systems must be able to: withstand mechanical damage, resist corrosion, provide a low impedance path to earth, and carry the maximum fault condition for the application/installation.