For general slinging and hoisting, there's not a more popular style of hook than the sling hook. The L-1339 from Crosby is the same hook as the A-1339 (no longer available), only it comes with the appropriate S-4320/S-4339 latch kit installed. All general dimensions and capacities remain unchanged. It has a reasonably large throat opening which makes it universally adaptable with many slings, shackles, eye bolts and D-Rings. Deformation and angle indicators help make the hook easy to use and easy to inspect. Fatigue-rated, proof-tested and backed with a safety factor of 4:1.