Cost effective, attractive solution for simple installs, the Chief CMA101 ceiling plate is designed for ease of installation with any height of drop ceiling. By using any length of standard NPT 1-1/2" pipe, threaded on both ends, you can extend the height capabilities to meet your needs.
CMA101 5" Designer Ceiling Plate with 1-1/2" NPT Opening (Black)
4" Flat Ceiling Plate CMA-101
5/16-18 x 3/8" Security Set Screw
5/16-18 x 3/8" Socket Set Screw
5/32" Hex Wrench