Designed to repair damaged threads or for use in original equipment, Keysert® and KEENSERTS® feature a key-locking action to prevent rotation due to vibration or torsion.
Keysert inserts are commercial-grade products packaged in single-size or range kits for either inch or metric sizes. Both carbon and stainless steel materials are available in Thinwall, Heavy Duty, Extra Heavy Duty, and Solid styles.
KEENSERTS are high-grade, stainless steel inserts manufactured and tested according to MIL-I-45914 rev A. This rigorous process includes testing internal and external threads (proof and pull-out), torque-out, locking torque, non-destructive testing, and magnetic permeability testing. KEENSERTS offer complete traceability and are available in internal thread-locking and miniature sizes.
Typical Applications Trucks, RVs, Machinery, Small Engines, Molds, Tool and Die, MRO Tasks
Drill out old threads with a standard drill. Chamfer the hole with a standard countersink (82°-100°). Tap new threads with a standard tap.
Align the slots in the installation tool to fit over the keys, and screw in the insert until slightly below surface.
Rotate installation tool so slots are not aligned with keys, and drive keys down with a few hammer taps.
Tooling and Kits
Keysert and KEENSERTS solid thread inserts are installed with either manual or pneudraulic tooling to meet your specific needs.
Manual tooling is offered in a tooling-only kit to install a range of Keysert insert sizes from M5-M20 and #10-1". Combination range kits include either 4 or 6 insert sizes along with matching manual tools. There is also a line of manual tools to install our KEENSERTS mil-spec inserts.
Pneudralic tooling is used to install either Keysert or KEENSERTS in sizes from M5-M24 or #10-1” using a specific nosepiece for each size. Nosepieces are a modular 3-piece design with each component available as an individual part.