
Figure 4-28 Mark the Screw Holes
4. Drill 4 holes according to the marks on the wall, and insert the expansion sleeves
into the screw holes. The suggested size of hole is 6 (diameter) × 45 (depth) mm.
5. Fix the gang box with 4 expansion bolts.
Figure 4-29 Fix the Gang Box
6. Fill the gap between the gang box and the wall with concrete. Remove the
mounting ears with tool after concrete is dry.
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