It is a key anchoring hardware for overhead power lines. It is installed on strain poles, angle poles and terminal poles to fasten conductors and lightning wires, bearing the full mechanical tension of lines while ensuring stable electrical conduction.

It is mainly divided into bolt type and compression type. Bolt type features easy installation and reusability, commonly used in distribution lines. Compression type offers superior gripping force and good sealing performance, suitable for high and extra-high voltage transmission lines. Matched with connecting fittings, it is widely applied in overhead power transmission and distribution projects.