12.2" L M10 Thread Threaded Rod Hollow 2Pcs Silver Zinc Alloy

M10 Thread Nipple for Lamp Tube Fully Threaded Hollow Center Hardware Connect the ceiling fan to the ceiling floor, while allowing the cable and wire of the ceiling fans to pass through the hollow center. The material of the lamp tube is zinc plated metal, which resists rust well and is durable in use. Useful and common equipment for attaching ceiling fans to the ceiling. Hollow center design and all external threads, hollow center is ideal for cable and wire passage during installation. Fully external thread design is easier to install and remove.