E-Z LOK Threaded Inserts For Metal; Assortment Kit; Carbon Steel; Thin Wall; UNF Internal Threads， 10-32， 1/4-28， 5/16-24， 3/8-24， 1/2-20; 46 pieces<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Assortment Kit With Range of Sizes</li><li>Install With Standard Drill &amp; Tap; NO Special Tools Needed</li><li>Self Locking; Preapplied Adhesive Activates Upon Installation and is Fastener-Ready in 3-5 Minutes</li><li>Carbon Steel， UNF Threads</li><li>Strong， Solid Construction Design</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51nk1aXu7gL.jpg" noproxy>