Loksert® key-locking thread inserts are used to quickly repair stripped, damaged or worn threads with new stronger threads, or for use in original equipment. Lokserts are easy to install and remove. No special drills, taps or prewinder tools are required. Their solid, one-piece construction provides a high degree of pullout strength and the keys provide a positive mechanical lock against rotation.Shop All Loksert ProductsVisit Loksert Website