U. S. Federal Specification(Hook&Hook, Hook&Eye, Eye&Eye, Jaw&Eye, Hook&Jaw, Jaw&Jaw, Stub End, Body Only), Commercial Type(Maleable Iron), Frame Type(Forged Steel), DIN1480 with hook&eye, Korean Type(Malleable), Deck lashing Turnbuckles, European Type Zinc Alloy Turnbuckles, US Type Zinc Alloy Turnbuckles.