New 6" Solid Unfinished Brass Threaded Lamp Pipe, 1/8 IP (3/8") #BP306U | eBay
Amazon.com: B&P Lamp® 1/8 IP X 36 Inch All Thread Pipe, 3/8 Inch Diameter, Zinc Plated Steel for Floor and Table Lamp Restoration : Industrial & Scientific
Threaded Lamp Pipe | Lamp Parts | Lighting2LightBulbs.com
3in UNFINISHED BRASS PIPE WITH 3/8 IPS FEMALE THREADS (5/8in Deep Thread)
36 and 48 Inch Seamless All Thread Pipe For Lamps and Fixtures, Comes in Steel or Brass, 1/8 IP, 1/4 IP or 3/8 IP (22380) - Antique Lamp Supply - Quality Lamp Parts Since 1952
1/2 3/4 1 NPT Pipe Thread to 1/8 IPS - Etsy Australia