MATERIAL & FINISH: Clamp body is ductile iron, grade 654512. Body is hot dip galvanized per ASTM A-153. The bolt and nut are galvanized steel. The retaining washers are tin-plated brass.

APPLICATION:  For use with galvanized ground rods. The RC-58GW and RC-34GW are recommended for use with copper ground wire. They feature tin plated brass retaining washers which effectively separate the copper ground wire from the galvanized clamp body. This design minimizes galvanic corrosion and increases clamp performance.