KEENSERTS® are high strength threaded inserts made from stainless steel 1.4305. They are passivated according to EN 2516. Our standard product range contains metric thread dimensions. Imperial dimensions and specials are available upon request. KEENSERTS® can be used in alloys light materials, steel and cast iron to give increased thread strength in these low strength materials. They are also be used for thread repair enabling the damaged thread to be replaced with the same size thread. KEENSERTS® have a positive mechanical lock against rotation and vibration.