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It is very common to mix up the thread sizes. 1/8IPS is the most common lamp thread and measures 3/8ths of an inch outside diameter with a ruler. This thread is NOT the same as 3/8ips which measures 5/8ths of an inch outside diameter.

Starting from the right--> 3/8ips thru 5/16-27 is hollow, the rest are solid.

The number following the -(dash) is how many threads per inch. So 1/4-27 would have 27 threads per inch.

We generally leave off the pitch on 1/8 thread, it is 1/8-27.

The (finial) threads on the top of a harp are 1/4-27.

1/4-20 is the most popular furniture thread, it is more course.

Unlike plumbing, lamp parts are not tapered (not NPT). Lamp thread IPS is straight or parallel threads, equals the same as NPS National Pipe Straight threads.

Slip is with no threads at all.

Taps make female threads, dies make male threads.

Tubing degisinated as "soft" (example: TU3/8S) can be easliy formed into any shape, just cut threads on the end with a die and you have a great unique lamp. bent arm

A reducer allows you to reduce the size of a female thread. A nozzle allows you to reduce the size of a male thread.

Females are innies (the threads are on the inside), Males are outies (the threads are on the outside).

Righty tighty, lefty loosey.

" = inch, ' = foot.

ID = internal diameter , OD = outside diameter

To find the diameter of a circle, divide by π ( pi) 3.14

Bases are measured on the top, where the object sits in/on.

Check rings and vase caps are measured on the inside of the rolled edge, since they work like a cover.

Crystal pendants and prisms are not measured with the jewel on top, only the main pendant.
Most of the crystal pendants and prisms come with the jewel.
All lengths of crystal chain are sold by the meter.

1 meter = 39.37007874 inch or a little over a yard.

Chain and parts used for overhead hanging are not rated for weight bearing.
The manufactures do not want to rate it an neither do we.
It is completely up to the discretion of the person doing the installation to decide if the parts they are using are strong enough.

Chain should be opened and closed in the way it was originally formed,
it should never be twisted torsionally which will substantially weaken the link.
We strongly recommend the use of chain pliers to open and close the links.

Items are in raw brass unless otherwise specified.

All sockets are polarized, the brass terminal is the positive, the silver is the neutral.

All wire is polarized, some by color and some by physical markings.

The larger blade on a plug end is the neutral. The other is positive.

The marked side of the wire is neutral. The other is positive.

In A/C wiring: black is positive, white is neutral, green is ground, red is usually switched.

A switch opens and closes the positive side of the wire ONLY.

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We do NOT have a printed catalog, but please feel free to print out any pages you like for easy reference.

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Please check back often, we will always have new items and more information.

 

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