An eye-bolt is a type of fastener that features a loop or eye-shaped end that can be used to secure ropes, hooks, chains, and other such materials. Though the term "eye-bolt" is widely used to describe this type of fastener, other names can be used depending on their specific characteristics. For instance, some types of eye-bolts are known as "screw eye-bolts" because they feature a threaded shaft and can be screwed into wood or other materials. Others are called "shoulder eye-bolts" because they include a shoulder that prevents excessive load on the eye. Some other possible synonyms for eye-bolt can include "ring bolt," "lifting eye bolt," "hoist eye-bolt," and "anchor eye-bolt".