E27 or B22 Lamp Holder to Harp Finial (U.S.A.) Converting Washers (pair)

Use the converting washers with our E27/E26 to B22/E14 Lampshade Reducer / Converter Adapter to convert a standard lampshade frame that has an  E27 Edison Screw Utility Fitting or UNO Lamp Fitter (centre hole size 40mm)  to operate with Harp & Finial Systems. primarily used in the USA.

Converting instructions - Harp & Finial Systems.

1. Squeeze the Adapter and install into the centre of the lampshade frame to reduce the aperture.
2. Insert a Converting Washer onto the stem of the Harp System.
3. Place your Lampshade onto the thread of the Harp System, ensuring the washer fits into the ridge of the Adapter.
4. Place the other Converting Washer on top of the Adapter, fit into the ridge, and then screw on your Finial.
5. Your lampshade can now be used with Harp Systems

Note

There are two standard sizes for Harp systems, 1/4" and 3/8" our converting washers will fit them both.
Below is a conversion chart with imperial and metric measurements

Inches    Metric
1/4"     6.35 mm
5/16"   7.95 mm
3/8"     9.53 mm

Our system works with these sizes, but If the Harp stem is bigger, you can make the hole in the washer bigger to fit.

These washers are sold in pairs.