Eye Sling Hook, Dual Rated, Series HercAlloy 80100 Grade, Eyelet Attachment, 114 in, Steel Alloy, Orange Powder Coated, For Use With HA800 and HA1000 Chains CM CM HercAlloy eye hooks are an excellent choice when used with mechanical couplers such as the CM Hammerlok These hooks are designed for overhead lifting and can be used in place of Clevlok hooks if preferred