Installation Guide

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BIG ASS FAN 2025
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4b. Fasten double angle irons to roof structure mounting points
CAUTION: The angle irons must be fastened to the roof structure at each end.
Fasten the angle irons to the roof structure mounting points at each end with customer-supplied Grade 8 hardware as shown. Tighten
the hardware so that it is snug, but do not torque until the fan has been mounted to the angle irons.
Proceed to step 5.
Angle Iron Hardware (Customer-Supplied):
a. (8) 1/2-13 or M12 Bolt
b. (16) 1/2” or M12 Washer
c. (8) 1/2” or M12 Nut
b
a
d
b
c
Installing the Fan (cont.)
Angle Iron Hardware (BAF-Supplied):
d. (8) 3” Square Washer (see diagram)
Square Washer
Thickness:
1/4” (6 mm)
3”
(7.6 cm)
3”
(7.6 cm)
Ø 9/16”
(1.4 cm)