Y-Clevis fittings are used for composite/polymer suspension insulators and polymer tension insulators. Y type clevis is used to attach ball and socket insulators to other associated tower hardware. Y type clevis belong to link fitting. It is used for insulators, suspension clamp, clamp and protection fittings connected to form a suspension or tension string set of fittings. It is made of malleable iron or casting steel and hot-dip galvanized.cotter pins are stainless steel,the other parts are hot-dip galvanized steel.