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 may be used in alloys, light materials, steel and cast iron to increase the strength of the thread in these materials. They can be used for thread repair, if the defect thread has to be replaced with the same nominal diameter.

Keenserts have less attrition. A multiple tightening and loosening of the bolt is possible.

Keensert Locking inserts include a dry film lubrication on the surface to protect the screw from galling.

Keenserts have a positive lock against rotation and vibration.

Keenserts have 2 or 4 pre-assembled kees according to the dimensions. After installation of the kees into the parent material the assembly is form-closed. No check with a thread gauge according to DIN standard possible in the area of the kees.