This Brass pottery nipple is perfect for holding a lampholder onto a ceramic or metal base.
The idea behind this product is to push the nipple through the ceramic or metal fitting then take a 1/2" threaded entry lampholder and thread it on, this will then fix the lampholder onto the light base.
Thread Length: 12mm
Thread Diameter: 1/2"
Flange Diameter: 16mm
Internal Diameter: 10mm