Hex head cap screws are similar to hex bolts, however they feature a washer surface under the head and have a chamfered end (as opposed to the flat end seen on hex bolts). They are often referred to as finished hex bolts by most people. The 6 sided head makes them easy to install using a standard wrench, socket set or nut driver. The first dimension will be the hex head size and the second dimension will be the length of the bolt. Each package contains 10 hex head cap screws (hex bolts).