Are All Lamp Finials the Same Size?

A. Most lamp finials have a ¼-27 thread and screw onto a lamp harp. Some lamps do require a finial with a larger hole. This is usually a 1/8-ip thread and measures approximately 3/8" in diameter.

Are all finials the same size?

Finial sizes vary greatly. A finial can have a length as small as 1.5 inches or as long as 9 inches.

What sizes do lamp finials come in?

A-There are basically 2 different thread sizes for most lamps.
  1. 1/8 IP (3/8" diam) to 1/4-27 thread adapter...
  2. 1/8 IP (3/8" diam) to 1/4-27 thread reducer... ...
  3. Nipple/pipe thread which is 1/8 IP (hollow threaded tube 3/8" diameter) ...
  4. The most common is Harp thread which is 1/4-27 (threaded solid stud 1/4" diameter)
Chloe Bennett

Chloe Bennett

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Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.