Brain fart: what do you call a circular nut...

[Newman109]

The Brits called them "Gland Nuts". It's in my old BSA manual. Sounds sorta dirty, doesn't it?

.

[Bill D]

the castle nut is crenelated like a castle wall sawtooth top. Often used for car wheel bearing adjustment nuts.
Bill D.
For watches the tool to unscrew the back or bezel is called a crab or maybe frog?

[Tyrone Shoelaces]

That sort of "nut" is called a "lock ring" on some machine tools. Regards Tyrone.

[The real Leigh]

Originally Posted by gas pumper

For some reason the term "New Departure nut" surfaced in my memory.

That's probably a reference to a bearing nut.

Those are thin, very fine threads, oddball sizes.

- Leigh

[The real Leigh]

Originally Posted by Mark Rand

If it holds the prop on to the prop shaft of a ship and is mounted with the aid of a hydraulic pump, it's usually a Pilgrim nut

The Pilgrims had no prop shafts on their ships.

- Leigh

[The real Leigh]

Originally Posted by Billtodd

I popped it into the hole nearest me to check the depth where upon, under just the weight on the rod, the nut spun undone :

It capitulated instantly in fear that you would unleash the combined psychic powers of the assembled experts on its poor self.

Wise decision, nut.

- Leigh

[The real Leigh]

Originally Posted by David Utidjian

The nut that holds the main rotor on a helicopter is called a jesus nut.

And the nut that holds the car's steering wheel is called the driver.

- Leigh

[tdmidget]

Originally Posted by Mark Rand

If it holds the prop on to the prop shaft of a ship and is mounted with the aid of a hydraulic pump, it's usually a Pilgrim nut

Only if it is the hydraulic nut used to force the wheel onto the taper. It is usually removed and replaced with a plain nut called a "boss" nut or "wheel" nut.

[fusker]

According to a german book I have it's called a "Kreuzlochmutter" (four holes drilled radially). If the holes are not drilled but cut (being square) it's called "Nutmutter". Sounds better, nut?

[gwilson]

Capstan nut is correct,I'm sure. Pianos use capstan nuts.

[Toms Wheels]

Yes, Capstan Nut "A nut whose edge has several holes, in one of which a bar can be inserted for turning it." Sci-tec definition


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[joecr]

Originally Posted by David Utidjian

The nut that holds the main rotor on a helicopter is called a jesus nut.
-DU-

At the moment it starts to comes loose, no doubt.

[flutedchamber]

Originally Posted by Pierce Butler

castellated nut?

Nan, the castellated nut is the nut with the six slots in the one end of the nut, allowing the use of a cotter pin to hold it in place..much like a tie rod or balljoint nut.

Now, on the other hand, a CASTRATED nut is any nut that is married for a few years...

[Patrick Black]

Threaded Collar.

[dfw5914]

It does not matter what you call it because when you go to order a replacement the person taking the order will indignantly correct your nomenclature.

"You want a capstan nut...? nahh, what you are really looking for is called a speed spinner stump drive pancake nut" (while giving you a slightly sideways narrow eyed look)

[nkuzmik]

Originally Posted by flutedchamber

Nan, the castellated nut is the nut with the six slots in the one end of the nut, allowing the use of a cotter pin to hold it in place..much like a tie rod or balljoint nut.

Now, on the other hand, a CASTRATED nut is any nut that is married for a few years...

DUDE!!!!
Don't post funny stuff like that while I'm trying to eat my soup!

[oliverdude]

That describes some of my co-workers. Nut(cases) with holes in various locations around the periphery of their head.

[nkuzmik]

I found this little beastie in the lab next door. When queried, the gentlemen in charge told me what it was used for, but not what the name of the fastener was.

It is a pressure vessel for autoclaving. It goes together in the order implied in the second picture. The larger black "nut" is snugged by hand. Then the 1/4-20 SHCS's are tightened to spec with a torque wrench.

Is there a proper name for this system?

[flutedchamber]

Originally Posted by nkuzmik

DUDE!!!!
Don't post funny stuff like that while I'm trying to eat my soup!

When you live in Joisey you need a LARGE and varied sense of humor..and a strong gag reflex.

[The real Leigh]

Originally Posted by nkuzmik

Is there a proper name for this system?

How about "autoclave"?

- Leigh