Overhead Line B-Metal Clamp 100/80-161 Overhead Line B-Metal Clamp 100/80-161 Overhead Line Bi-Metal Clamps.Contact us for price and availability. Category: Rail Way Items Related products Rail Bond kit R350.00 3kV DC Silicon Rubber Vandal Proof Insulators 3kV DC Solid Core Porcelain Insulators Suspension Clamp TNB 91