Pipe Thread Size Chart

Various chandelier parts along the main column may be attached with threaded rod. We're including here a chart to help you determine which one is right for your application.

The typical threaded pipes for lamps and standard household fixtures are the 3/8" diameter. But other sizes may be used for larger fixtures or for other attachments that need structure or wiring.

1/4-27

1/8 IPS

1/4 IPS

3/8 IPS

1/2 IPS

1/4" dia.

3/8" dia.

1/2" dia.

5/8" dia.

3/4" dia.

Common on harp tops & some finials

Most common size for table lamps and regular-size fixtures

Often used on floor lamps and cluster bases

Used on large chandeliers and other heavy duty applications

Used on large chandeliers and other heavy duty applications

  • 1/4-27 (1/4" dia.): Common on harp tops & some finials
  • 1/8 IPS (3/8" dia.): Most common size for table lamps and regular-size fixtures
  • 1/4 IPS (1/2" dia.): Often used on floor lamps and cluster bases
  • 3/8 IPS (5/8" dia.): Used on large chandeliers and other heavy duty applications
  • 1/2 IPS (3/4" dia.): Used on large chandeliers and other heavy duty applications
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