Eyenuts are fasteners with a looped head. It is designed to receive a hook or rope. Eye nuts are rated for different types of applications and are oval or round in shape. Load-rated eye nuts are designed for vertical lifting, but are not recommended for use with angular lifts. Eye nuts that are not load-rated are designed for use with tie downs and guiding wires. They are not rated for lifting applications. Eye nuts differ in terms of material and finish.