Got stripped or worn-out threaded holes in metal parts? This E-Z LOK threaded insert kit makes repairs a whole lot easier. Designed for 9/16-18 fasteners, the kit includes 10 solid steel inserts (with a black oxide finish), a drill bit, a tap, and a drive tool—so you have everything you need in one pack. These inserts are perfect for fixing threads in softer metals like aluminum, cast iron, or magnesium, common in automotive, machinery, or DIY projects. The external threads come pre-coated with adhesive that activates during installation, creating a strong, self-locking bond that won’t loosen over time. They’re way stronger than re-tapping the original hole and provide a reliable threaded surface for bolts or screws. Whether you’re working on an engine block, a bike frame, or equipment housing, this repair kit saves you from replacing entire components. The instructions are straightforward, but if you’re not super experienced, it helps to take it slow. Overall, it’s a professional-grade solution that’s also handy for home workshops. Keep this kit in your toolbox—you’ll be glad you have it when a thread blows out.