A bolt is a form of fastener used to connect two parts. The bolts join the parts in a non-permanent manner, allowing the parts to be separated using an appropriate tool.
What Are Hex Bolts? Hex bolts are threaded bolts recognized by their hexagonal six-sided heads. Hex bolts can be fully threaded or partially threaded (with a clear shank along part of the body) and are useful in a variety of applications, most notably machinery and construction.