The Hillman Group 44352 5/16-18 Cage Nut， 12-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The most common use for cage nuts is to mount equipment in square-holed rack</li><li>Ensures bolt assembly even in off-center position</li><li>Zinc-plated finish</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51oGjM9%2BMVL.jpg" noproxy>