permanent mount blind nuts are available in 7 sizes.
Used for mounting engines, landing gear, cowls, hatches, etc.

The perfect mounting nut for hard to reach areas. Zinc plated.
These Nuts are used to provide a threaded socket in wood .
Simply insert the T nut into the appropriate size hole and tap in
with a hammer and the 3 or 4 prongs will stop the T nut from turning when tightening the fixing.

Blind nuts for M5 and 8 in a packet