Hangar 9 Alpha 40 ARF Assembly Manual page 14

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Step 2
Slide a #8 washer on a 8-32 x 1-inch socket head screw.
Insert the screw through the appropriate hole in the firewall
from the inside of the fuselage.
14

Step 3
Prepare three more 8-32 x 1-inch socket head screws and
insert them into the firewall as shown.

Step 4
Place a drop of threadlock on each of the screws.

Step 5
Thread a 45mm EP standoff on each of the screws. Use
a 9/64-inch hex wrench or ball driver to tighten the 8-32
socket head screws while holding the standoff with a 5/16-
inch open end wrench. Install all four standoffs at this time.
Hangar 9 Alpha 40 ARF Assembly Manual