Permatex 27100 High Strength Threadlocker Red, 6 ml Adds 3,000 PSI holding power on slip and press fit assemblies Well-suited for permanently locking studs and press fits Replaces set screws and snap rings and also locks against vibration loosening May require heat or special tools for removal Suggested Applications: Cylinder block and rocker arm studs, ring gear bolts, frame bolts, shock absorber bolts