NLL series Aluminium alloy dead end/ strain clamp(bolt type) Is suitable for aerial line up to 35KV. Fixing aluminium wire of steel Core aluminium wire on the strain pole. Character of dead end/ strain clamp(bolt type): The bolt type strain clamp is used to AAC and ACSR, the conductor maybe wound by aluminium tape or preformed armour rods for protecting with Smooth surface and easy installation. Specification of bolt type Strain Clamp: For more information, please visit our website.