Fixture Support: Stud and Hickey 3/8"

[Athos]

In a set of specifications it calls for the Fixture Supports to be Stud and Hickey 3/8", What do they mean?:?

 

[iwire]

In a set of specifications it calls for the Fixture Supports to be Stud and Hickey 3/8", What do they mean?:?

A box with a stud, like this one http://www.hubbellcatalog.com/raco/RACO_datasheet.asp?PN=326

And a hickey like this

The hickey screws to the stud in the box, the fixture screws to the hickey and the fixture wires come out the space in between.

It is a more secure mounting than the 8-32s

 

[infinity]

Fixture boxes have a 3/8" stud in the back for the connection to a fixture hickey. This would be used to support the fixture as opposed to one of those bars that attach to the box with the 2-8/32 screws.