Creative Hobbies ELY1097 - 4 Inch Long Steel All Thread Nipples Pack of 10 Pieces 1/8IP threaded nipples fit standard lamp pipe measuring 3/8 inch outside diameter. 4 Inch Long, Yellow Zinc Coated Steel, 1/8IP Standard Lamp Pipe, hollow steel for running wire through. Perfect for replacing, repairing or creating lamps and lighting products. These all thread pipes are sized to fit standard lamp sockets, necks, and hardware designated 1/8IP thread. Creative Hobbies ELY1097 - 4 Inch Long Steel All Thread Nipples Pack of 10 Pieces. 1/8IP threaded nipples fit standard lamp pipe measuring 3/8 inch outside diameter. 4 Inch Long, Yellow Zinc Coated Steel, 1/8IP Standard Lamp Pipe, hollow steel. Perfect for replacing, repairing or creating lamps and lighting products. These all thread pipes are sized to fit standard lamp sockets, necks, and hardware designated 1/8IP thread. Imported