Hard-to-Find Fastener 014973323325 Nylon Locknut-Thin， 5-Piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diameter: 1/2"</li><li>Thickness: 21/64 inches</li><li>Material: Steel</li><li>Finish: Zinc</li><li>Driver Type: 3/4" Wrench</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41PY%2B4heU7L.jpg" noproxy>