Great Planes Pro Thread Locking Compound This is the Great Planes 0.11 oz bottle of Pro Thread Locking Compound. Great Planes has designed this bottle of Pro Thread Locking Compound to be used on metal fasteners. It is not recommended for plastic parts.Features: Medium strength general purpose thread lockerLocks threaded fasteners against vibrationPerfect for use in helicopters and all RC carsClean and dry parts for best results (removing grease, oil and di