Hard-to-Find Fastener 014973192075 Coarse Nylon Insert Lock Nuts， 5/16-18-Inch， 30-Piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diameter: 5/16"</li><li>Material: Stainless Steel</li><li>Driver Type: 1/2 Wrench</li><li>Thread Type: 18 (Coarse)</li><li>Style: Waxed Nylon Insert</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51r4RiDuR7L.jpg" noproxy>