75mm Brass Extender Male & Female 10mm Threads PLU34850
If you have a male thread on your base and need to raise a lampholder up, use this Brass 75mm Extender which has a male 10mm thread one end and a 10mm female thread the other.
The Brass extender has a clearance hole all the way through for the cable.
Raising height 75mm with 5mm of male thread on top.