Widely used iron or aluminum metal accessories for sending wires, collectively known as hardware. Hardware comes in a variety of types and serves different purposes, such as various wire clamps for installing conductors, various hanging rings for insulator strings, various pressure sleeves and repair sleeves for connecting conductors, various types of spacer rods on split conductors, and also various tension hardware for poles and towers, which are related to the size of the protective conductors and must be matched with each other.