Ansen Tools AN 204 Nylon Lock Nut Assortment SAE， 150 piece<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>6 common sizes for general use</li><li>Perfect for professionals or DIYer's</li><li>Sizes include: 25 pc #10x24， 35 pc 1/4" x 20， 25 pc 1/4" x 28， 30 pc 5/16" x 18， 25 pc 3/8" x 16， 10 pc 1/2" x 13</li><li>Steel with zinc finish for superior rust resistance</li><li>No lock washers needed</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Wja005JNL.jpg" noproxy>