SPT's E-Z Nuts

The advantages of the E-Z Nuts are numerous:
E-Z Nuts simply slip over the instrument and E-Z Nuts are held in place during installation with 3M adhesive--they won't fall off and get lost.
Line up one screw hole and then all four are lined up--this is a big advantage when you have one hole that is inaccessible.
E-Z Nuts come in two obvious sizes (3 18" and 2 14" that fit the standard aircraft instruments (you won't have to guess what the thickness is of the instrument flange that is behind the panel--"cage type" nuts come in 8 different sizes).
The threaded E-Z Nuts are stainless steel and have more threads and will not strip out easily, unlike the thin, brass, threaded plate on the "cage-type" of nut
Misalignment and cross threading of the "cage-type" of nut is common, this will not happen with the larger E-Z Nut bezel that is held flat against the backside of the instrument.