More information about Dubro 4-40 Threaded Insert DUB391
These are brass threaded inserts from Du-Bro.
- Brass threaded inserts
- The perfect way to put threads into wood & mount engines to wood mounting rails
- Threaded inserts make a simple & effective way to make wing hold downs
- These can be used where blind nuts are hard to fit
Includes: Four Threaded Inserts
Thread Size: 4-40