Hard-to-Find Fastener 014973185725 Jam Nuts， 5-Piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diameter: 9/16"</li><li>Material: Stainless Steel</li><li>Driver Type: 7/8" Wrench</li><li>Thread Type: 18 (Fine)</li><li>Type: Jam Nut</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51qhNjMNbgL.jpg" noproxy>