The Hillman Group 43803 5/16-Inch External Tooth Lock Washer， Stainless Steel， 50-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Uses external teeth for locking and tension</li><li>These washers are preferred when the finished appearance is crucial and teeth must be hidden</li><li>Stainless Steel</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41VbaDfmLHL.jpg" noproxy>