Used to support one and two pair telephone drop wire at span clamps, drive hooks, and various drop attachments. Aluminum Drop Wire Clamps are stamped from 5052 H34 aluminum. Tail wires are formed from 430 Stainless Steel. Provided with a serrated shim to increase hold on drop wire. Drop wire clamps shall hold, without slippage, a suitable length of drop wire until sufficient load is applied to break the drop wire or to a maximum load of 555 pounds.