Universal Precision Screws

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.

  Self-tapping screws, also known as tapping screws, are designed to cut their own threads in which they are screwed.