The Hillman Group 45512 M12-1.75 X 120-Inch Metric Hex Cap Screw， 3-Pack<div style="text-align: left;"><strong>[Product Information]</strong><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>Hex head cap screws come in a variety of sizes， finishes， grades and threads</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31PVddtYa5L.jpg" noproxy>