The Hillman Group 831514 1/4-20 x 1-1/2-Inch Stainless Steel Hex Cap Screw， 100-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>Stainless Steel</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/41i%2BvRsiOfL.jpg' noproxy></br>