The Hillman Group 43795 5/16-Inch Internal Tooth Lock Washer， Stainless Steel， 50-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Uses internal 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/41cZYmwqOuL.jpg" noproxy>