Awesome Nuts

crossthread · Nov 29, 2020

As a retired Urologist I thought I had seen every kind of nut imaginable.......just kidding. My son is a mechanical engineer at Philip Morris. They have allthread screwed into anchors in the concrete ceilings which hold various cable ways and pipes in fours layers. He was working up a work order to remove all the layers up to the third level which is the only place that had enough headroom to install new equipment. A machinist came into his office and dumped a box of these nuts on his desk and told him that they could add nuts anywhere on the allthread without taking the whole thing apart. Brilliant.

GregSY · Nov 29, 2020

My guess is they are OK for some light duty stuff, but much weaker than a normal nut.

I also suspect they are best tightened with one of these:

Lewie · Nov 29, 2020

GregSY said:
My guess is they are OK for some light duty stuff, but much weaker than a normal nut.

I also suspect they are best tightened with one of these:

THAT Obviously aint gonna ever work for the app that started this thread. :-)
..lewie...

dgfoster · Nov 29, 2020

Here is a little more detail:

And available (of course) at McM as you would exect and listed as "Steel Slip-On Twist-Close Nuts"

I suppose Loctite would hold them in closed position. Is that true?

Denis

Bondo · Nov 29, 2020

Those nuts have a very low rating. I think they can hold more then 100 pounds. We use these to install cover plates on existing all thread going through walls.

Sent from my SM-G960U using Tapatalk

Mark Rand · Nov 29, 2020

Perfecly adequate for cable trays and small pipework though.

Limy Sami · Nov 29, 2020

''Awesome Nuts''

:cheers:

mate (at my age I'll take any compliment going

)

DDoug · Nov 29, 2020

Mark Rand said:
Perfecly adequate for cable trays and small pipework though.

And if it falls ?

Into some machinery ? Onto some workers ?
Disconnecting what kind of wiring as it falls down ?
Office Muzak ? or building/process controls ?

Hyatt Regency walkway collapse - Wikipedia

GregSY · Nov 29, 2020

I have a relative - the kind with two left thumbs - who is enamored with all of that kind of junk. He simply has no mechanical aptitude, and doesn't get why it's not a better mousetrap.

He has lots of tools, all of them are garbage. Hammers with the curvy ergonomic handles, dog bone wrenches made of stamped steel, screwdriver sets with one handle and 12 different can opener attachments, it goes on and on. It's like someone invented a human - him - who is the poster child for Black & Decker and Harbor Freight rolled into one.

The fact that McMaster sells them proves they are of some value and some quality. But only in a very limited band of applications. Brilliant? Well.....as a practicing amateur urologist, I'd put them on par with my vacuum powered prostate emptier that needs to be inflated and looks lile Marilyn Monroe from the side.

Gordon Heaton · Nov 29, 2020

digger doug said:
And if it falls ?

Into some machinery ? Onto some workers ?
Disconnecting what kind of wiring as it falls down ?
Office Muzak ? or building/process controls ?

Hyatt Regency walkway collapse - Wikipedia

Well, you can 'what if' yourself into doing nothing at all or spending 10 times the effort and money. A walkway and a raceway are not the same thing. Looks like a good solution for the stated problem.

crossthread · Nov 29, 2020

They are completely adequate for the job at hand. The machinists down there have been using them for years with no failures. They have some extremely deep pockets so they don't do things half assed. Brilliant? Yes. I think they are a brilliant and elegant design. They do not loctite them. Once all the threads are engaged they act like a regular nut and they use a lock washer to secure them.

yardbird · Nov 29, 2020

These things are the neatest things I've seen lately. Prefect idea!

Brent

gustafson · Nov 29, 2020

I think if you had a little sheet metal clip to keep them from rotating apart, they would be strong enough for anything attached to allthread

dgfoster · Nov 29, 2020

And here is another solution to the problem. It looks like you could apply this to the all-thread, snug it up to the bracket and then cinch up the screws to prevent further rotation. Hmmm, lots of clever designers out there....

Denis

Jeff_M_PA · Nov 29, 2020

These are fantastic and I think perfect for the OP's son's intended application. I'm curious about everyone's skepticism about them. One said "Those nuts have a very low rating. I think they can hold more then 100 pounds" (I assume he meant "no more than"). Another said "My guess is they are OK for some light duty stuff, but much weaker than a normal nut." Why MUCH weaker than a normal nut?

We all know that a "normal" nut is stronger than the underlying threads. I look at these and think, OK, probably weaker than a standard nut, but not MUCH weaker, maybe 10-20% weaker? But a max 100 pounds of load is laughable. I guess it would be pretty easy to test given sufficient motivation (which OP's son's application would probably provide).

I'm genuinely curious as to the thinking of the skeptics. The OP said "cable ways and pipes", not an F1 car's suspension.

Jeff

dgfoster · Nov 29, 2020

Jeff_M_PA said:
These are fantastic and I think perfect for the OP's son's intended application. I'm curious about everyone's skepticism about them. One said "Those nuts have a very low rating. I think they can hold more then 100 pounds" (I assume he meant "no more than"). Another said "My guess is they are OK for some light duty stuff, but much weaker than a normal nut." Why MUCH weaker than a normal nut?

We all know that a "normal" nut is stronger than the underlying threads. I look at these and think, OK, probably weaker than a standard nut, but not MUCH weaker, maybe 10-20% weaker? But a max 100 pounds of load is laughable. I guess it would be pretty easy to test given sufficient motivation (which OP's son's application would probably provide).

I'm genuinely curious as to the thinking of the skeptics. The OP said "cable ways and pipes", not an F1 car's suspension.

Jeff

I think you are on the right track in all regards stated above. But there is no need to have six young guys suspend themselves from one to test its strength. Because it would carry them and more. A zinc-plated1/2-13 is rated at 1350 pounds.

I am sorry I cannot seem to resize the above to be more legible.
Here is the link: https://images.tradeservice.com/9ETBOIYK8205G6UU/ATTACHMENTS/DIR100167/BLINESE01366_45_57.pdf Then scroll down a couple pages.

Denis

dian · Nov 30, 2020

will it work as a quill stop?

Limy Sami · Nov 30, 2020

dian said:
will it work as a quill stop?

Dunno, but I like your thinking

Milland · Nov 30, 2020

dian said:
will it work as a quill stop?

They already have similar things:

Quick Adjusting Quill Stop | 84784 | Travers Tool Co., Inc.

And there are other styles/sizes available too:

McMaster-Carr

DDoug · Nov 30, 2020

Milland said:
They already have similar things:

Quick Adjusting Quill Stop | 84784 | Travers Tool Co., Inc.

And there are other styles/sizes available too:

McMaster-Carr

Years ago, some vendor advertised them as "The educated Nut"..... :nutter:

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