The Hillman Group 220316 Grade 8 Hex Cap Screw， 5/8-Inch X 1-1/2-Inch， 25-Pack</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>A common feature on a hex cap screw is a washer surface directly under the head which creates a better seal</li><li>An alternative for using them without nuts is to install them directly into a compatible internally threaded hole</li><li>Grade 8 screw</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31z-KCxlpoL.jpg' noproxy></br>