lighting - What is the name of a screw-nut ring used to hold up a hanging lampshade? (see photo) - Home Improvement Stack Exchange
Lampshade Reducer Ring,10 Pcs E27 to E14 Plastic Lamp Shade Ring Converter,42mm to 29mm to Support Lamp Shade with Duplex Ring Fitting, for Fitting ...
E27 to E14 Plastic Lamp Shade Ring Converter, 42mm to 29mm Lampshade Reducer Ring, Light Shade Adapter Ring to Support Lamp Shade with Duplex Ring ...