AKUMA® KEYLOCK threaded inserts are designed to permanently restore worn or stripped threads in high-stress environments. Built with locking keys that mechanically anchor the insert into the base material, KEYLOCK prevents rotation under vibration or load. Made of high-strength stainless steel, they perform even under extreme mechanical and thermal stresses. Simple installation restores threads in castings, housings, and machinery parts without the need for oversized bolts. The locking mechanism ensures the insert stays fixed even during future disassemblies. Suitable for aluminum, steel, or iron parts, KEYLOCK is a trusted choice in professional workshops and factories. Save time, money, and scrap by repairing rather than replacing. KEYLOCK by AKUMA® makes sure your threads stay locked, loaded, and reliable.