Eye bolts are a tremendously popular rigging component, especially this style. Regular nut eye bolts do not have a shoulder which makes them easy to install and usable in many applications. They are popular for lifting, bracing and zip lining, just to list a few common examples. Chicago makes these eye bolts from forged Type 316 stainless steel for maximum strength and corrosion resistance, right here in the U.S.A. Their Working Load Limit is based on a safety factor of 5:1 for straight, in-line loading. Angular loading should be avoided as it reduces the Working Load Limit.