Light Fixture Crossbar, Zinc, 3/8-In. IP, 3-7/8 to 5-In.
3-7/8" to 5", adjustable, slips 3/8 ip, all purpose, zinc crossbar, use for mounting light fixtures to 3", 3-1/4" or 4" electrical boxes, includes 2 each of the following: 1/2" mounting screws & 3/4" mounting screws.
