BIG ASS FANS Element Installation Manual page 17

4b. Fasten double angle irons to roof structure mounting points
Grade 8 Hardware (Customer-Supplied):
a.
b.
c.
d.
a
b
c
b
d
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®
ELEMENT
©2011 DELTA T CORP. DBA BIG ASS FAN CO.
Square Washer
3"
(7.6 cm)
Ø 9/16"
(1.4 cm)
Thickness:
1/4" (6 mm)
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11
3"
(7.6 cm)