G9 Snap On Dome For Porcelain Lampholder
Threaded Female base nipple M10x1 with retainer
External thread 20.8mm, can be used with the metal shade rings.Spec:
- Height: 28.5mm
- Diameter: 20.8mm
- Thread: M10 x 1
- Material: Plastic
Please note - This cap can only be used with the G9 Porcelain Insert. 