Machinery-style eye bolts are the most popular style of eye bolt we sell. They are designed to thread into a pre-tapped hole, although many of our customers choose to install them through a drilled hole and put a nut and washer on the end of the threaded shank. However you use them, just know these eye bolts are made in the U.S.A. from drop forged steel with a zinc-plated finish. This makes them ideal for use in mildly corrosive environments where stainless steel is not required, and a self colored finish won't do. 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.