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Request for help finding a 1/4-32 or 1/4-40 screw, or threaded rod stock

Hi Everyone,

Can anyone please tell me where I can find some 1/4-32 or 1/4-40 screws about 1.8" long. I can cut down a longer screw. I don't need a head on the screw, so I could cut the head off, or use threaded rod stock. Cutting the head off the screw may be cheaper.

I'm going to drill a hole through the screw at one end and use it as an adjustable spring anchor. Due to space limitations, I need to use a small pattern hex nut (maximum 5/16" flat to flat) such as the Part #

91862A516 from
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They also make a 1/4-40 nut at slightly more cost.

I could not find a 5/16" hex nut to work on a regular 1/4-20 or 1/4-28 screw, so that's why I need to find a 1/4-32 or 1/4-40 screw. If I could find a 5/16" hex nut to work with a 1/4-20 or 1/4-28 screw, that would also solve my problems since 1/4-20 or 1/4-28 screws are more easy to find.

I would appreciate any help anyone can provide with finding a source for the screws, or any feedback.

Thanks for your help. John

Reply to
John2005
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Hi John:

Have you already tried looking at McMaster's pre-made spring anchors? Take a look at their part no. 9634K14.

Don Kansas City

Reply to
Don A. Gilmore

Hi Don,

Thanks for the tip on the stock spring anchors.

The only problem is, I can't find a nut that is only 5/16" flat to flat, that will work with the 1/4-28 thread. They seem a little high at

3.00 each, it seems a machinist could make a bunch for alot less.

I just made a new post in the forum which explains the problem more fully, and has a link to a small GIF drawing of the anchor.

Thanks aga> > Hi Everyone,

Reply to
John2005

You might look for electronic hardware.

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has 70B9168 which is a 1/4-40 nut used for small toggle switches ($0.27/ea). Some small pots have that size or perhaps 1/4-32 or 1/4-36. Also, many panel meters have

1/4" studs that are very fine pitch and small pattern nuts, and the studs are about 1" long (some might be longer, especially switchboard meters), but usually brass. You might find a lot of old surplus meters you can cannibalize, or you might get replacement studs from a company that specializes in analog meter modification, such as
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I have some old meters and studs from when I used to work at EIL, which was eventually bought by Weschler.

Also, you might look at rod couplers, which are smaller pattern than nuts, and also threaded spacers.

Good luck,

Paul

Reply to
Paul E. Schoen

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