Cradle grab hooks from Zips are made from Grade 100 high-strength alloy steel and are approved for overhead lifting. An eye loop allows for attachment to chain with a master link. The size and grade are stamped on the side of the hook. See the drop-down menu for available sizes and working load limits. Grade 100 alloy steel Six sizes available Approved for overhead lifting Available in the following sizes Item # Size Min. Break Strength WLL Safety Ratio Eye Diameter Z38G10ECGH 3/8″ 35,200 lbs. 8,800 lbs. 4:1 .86″ ID / 1.91″ OD Z12G10ECGH 1/2″ 60,000 lbs. 15,000 lbs. 4:1 Z58G10ECGH 5/8″ 90,400 lbs. 22,600 lbs 4:1 th, td { padding-right: 20px; } .product-table-top { display: block; max-width: -moz-fit-content; max-width: fit-content; overflow-x: auto; white-space: nowrap; }