Manufacturer Description

These are Brass Threaded Inserts from Du-Bro.


FEATURES:
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:
(4) Threaded Inserts


SPECS:
Thread Size: 4-40
Length: 7mm


BOX DIMENSIONS: 2.25" W. X .50" H. X 2.25" L.
BOX WEIGHT: .02 LBS.