<b>About Hex Nuts</b><br/> Hex nuts are used to match screws and bolts to help secure items. <br/> They have a hexagonal body whose flat portion can be grasped with a wrench for turning to tighten and loosen in a fastening application. <br/> For ease of assembly and disassembly, hex or hex nuts are the most common types of nuts. Hex nuts are measured in metric or imperial units. <br/> Common sizes include internal thread size and pitch width of the span.<br/>