Grade 100 self-locking hooks from Zip?s automatically close and will not open under a load. Approved for overhead lifting, each hook includes an eye loop for attachment to the chain with a coupling link. They are available in five capacities with the grade stamped on the side of each hook. See the drop-down menu for available sizes and working load limits. Grade 100 alloy steel Five sizes available Approved for overhead lifting Available in the following sizes Item # Size WLL Z38G10ESLH 3/8″ 8,800 lbs. Z58G10ESLH 5/8″ 22,600 lbs. Z12G10ESLH 1/2″ 15,000 lbs. 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; }