Re: Rack/Cabinet Hardware

Sounds like a Unistrut nut. Take a look here and see if that is what you
are talking about. They have more than one size, so look around if this one
isn't correct.

http://www.unistrut.com/Browse/cat_pg.php?P=S10_nut

WT

"Radra" <radra@xxxxxxxxxxxx> wrote in message
news:1121721242.912023.3020@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>I am working with some 20 year old HP 19 inch equipment racks (HP
> 29402 B/C) into which I will be installing some test equipment.
> Would like to find a source for the special spring-loaded nuts used
> to attach the horizontal angle brackets which support the equipment.
>
> These nuts are designed to fit into one of four channels (or slots)
> which run vertically the entire height of the rack (one channel in
> each corner of the rack). Haven't used these types of nuts in years
> but recall they used to be quite common.
>
> Will attempt to describe them. Draw a rhombus approximately 0.7 by
> 0.4 inches. This rhombus is made of metal and extends into the paper
> about 0.15 inches. Next draw a hole in the center of the rhombus
> which is tapped to fit a 1/4x20 screw. Lastly draw a coil spring
> slightly larger in diameter than the hole and which has one end
> welded to the face of the rhombus and extends vertically out from the
> paper about 0.5 inch. This spring is centerd on the hole.
>
> The channel opening is only slightly larger than 0.4 inches but its
> interior widens to about 0.7 inches. These nuts are inserted into the
> slots along their narrow dimension (0.4 inch) and then twisted 90
> degrees so the lip of the channel prevents then from being pulled out.
> The sping holds them in place while the bracket screws are being
> screwed into them.
>
> Lyman
>


.

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