External thread 1.3 cm (0.51 inch) M13 x 1
Hollow tube, so you can pull the lamp wire through.
|Outer Diameter (cm):||1.3 (0.51 inch)|
|Length (cm):||5.0 (1.97 inch)|
Small copper colored rod, raw copper.
If you polish the rod, you have shiny gold copper.
Length of the rod is 5.0 cm (1.97 inch) and 1.3 cm (0.51 inch) in diameter.
The rod is hollow inside.
Electric wire can be pulled through the rod.