Bronze Cord Grip with Male 10mm Thread 
If you need to turn a lampholder into a pendant this is the ideal part you need as a cord grip. Just screw this Lampholder Cord Grip into the back of the lampholder to grip the flex when hanging as a pendant.
Fits 10mm entry lampholders.
Dimensions: 17.5mm x 26mm
Inner Diameter: 7mm
Outer Diameter: 8.7mm