Great Planes Brass Threaded Insert 6-32 (4) These are Great Planes Brass Threaded Inserts (6-32)Features: Brass construction The perfect way to put threads into wood and mount engines to wood mounting rails. Threaded inserts make a simple & effective way to make wing hold downs. Can be used where blind nuts are hard to fit Comes in a Parts-Pak clear plastic box with resealable lid One year quality guarantee Includes: (4) Threaded Inserts Requires: 3/16" Dr