
ISSUED: 04-21-03 SHEET #: 055-9158-1
4 of 8
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CAUTION: Tighten wood screws so ceiling plate
(G) is firmly attached. But DO NOT TIGHTEN
WITH EXCESSIVE FORCE! Overtightening can
cause stress damage to wood screws, greatly
reducing their holding power! Tighten to 80 in •
lb(9 N.M.) maximum torque.
Drill two 1/4" (6 mm) dia. holes to a minimum
depth of 2.5" (64 mm). Attach ceiling plate (G)
using two concrete anchors and #14 x 2.5" wood
screws (F) as shown in Illustration A and 1, 2,
and3(below).Tightenallfasteners.
IMPORTANT: It is the responsibility of the
installer to verify that the ceiling will safely
support the combined load of all attached
hardware and components.
1
3
Drill hole and insert anchor
Place ceiling plate over anchor and secure with screw
After repeating step one tighten all fasteners
CUTAWAYVIEW
INCORRECT
concrete
metal
bracket
plaster/
drywall
CORRECT
concrete
metal
bracket
plaster/
drywall
FORDIRECTATTACHMENT TO LOAD BEARING CONCRETE
ONLY! Concrete expansionanchors are not intendedfor
attachment to concrete ceilings covered with a layer of plaster,
drywall,or other finishing material.If mounting toconcrete
ceilingcovered with plaster /drywall is unavoidable,plaster/
drywallmust be counterboredas shown below.
concrete
ceiling
concrete
anchor
concrete
anchor
concrete
anchor
F
F
F
Illustration A
Installation to Concrete Ceilings
ACC 03 (Alligator® concrete anchors) are recommended.
concrete
anchor
G
2G
CONCRETECEILING