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The Chief CMA-385 Internal Joist Mount expands to bridge ceiling joists on 10-23" centers. The CMA-385 has a clamping bracket that adjusts from 8.50-21.50" and has a threaded fitting that accepts a 1-1/2" NPT threaded extension column.
In the Box
Chief CMA-385 Internal Joist Mount
(4) 1/4-20 X 4" Carriage Bolts
(4) 1/4-20 Nylock Nuts
(8) #10 X 1.5" Wood Screws
5-Year Parts and Labor Warranty
Table of Contents
8.50-21.50 x 4.50 x 4.13" (215.90-546.10 x 114.3 x 105.02 mm)