Meaning of the Terms Bolt, Nut, Stud, and Thread

Please see this part of the Wikipedia entry for "Screw":

http://en.wikipedia.org/wiki/Screw#Differentiation_between_bolt_and_screw

The word "Screw" is very often used in engineering (and other) circles for what you describe as a bolt.

You're excused.

Only some screws are tapered. Many are not.

Anybody use a nut on their dead bolt to hold the door fast?

What would the devices attached to the Frankenstein monsters neck be called?

Ribbitsivets:

Torso and Head?

Ears?

Welcome to CR4

.....

Recent Title of a news in some newspaper (given by mechanical engineer turned to reporter):

"A nut screws washer (woman) and bolts"

Congratulations!

Strangest, funniest, most inappropriate, inaccurate, meaningless post EVER on CR4. Especially the bit where a Nut can be called a Stud which has a thread both sides. Anybody ever seen a square Stud?

And what in heaven's name does "The torque place is provided in the mid-portion this stud" mean?

I've seen studs with hexagonal sections in the middle.

This thead may be many of the things you suggest but it is not meaningless when you consider that almost every country distinguishes between screws and bolts in their import/export legislation. And most coutries will issue a fine if you get it wrong.

Lighten up a bit. His English isn't our English! And British English isn't the same as American English. (Nor from one end of the USA to the other!)

Threads on both sides obviously (to me) means both ends. Most studs that I have seen have different threads on each end; that is coarse on one end & fine on the other. Or maybe a tapered wood screw thread on one of the ends. With these there is usually a short unthreaded portion between the end threads. This would be the "torque place."

I'm light Lehman. It's just that there are people who think they can post any old drivel on here whether their first language is English or not. I have previously criticised contributors who post comments/answers that are erroneous and sometimes dangerous if their advice is adopted so I may be over-sensitive.

However, this guy is SO wrong on almost everything! Ok, I take your point about the "threads both sides" meaning both ends (apologies for not understanding), but what you and he describe is what I know as a Hanger Screw (or Hanger Bolt) not a Stud, so I can't agree with either of you on that one. (I think you might find that Wikipedia states something similar). However your explanation clarifies the OP's "torque place" phrase for me because some Hanger Screws have a hexagonal unthreaded portion to take a spanner/wrench, so this now makes sense to me.

Other than that, the OP's contribution to our "engineering workplace" is, in my humble opinion, less than NIL. Sorry again, but that's the way I see it. Call me old and grumpy if you wish.

Studs do not have to have threads on both sides. By both sides i am assuming you mean both sides of what it is going through (i.e. panel, plate, etc.). There are studs used to hold on automobile wheel rims. Those studs are pressed in and no need to have access to the opposite side.

Then there is the "socket head cap screw" which was developed to retain the hats of pugilists.

Telling the difference between a screw and a bolt is easy.

Just read and memorize this 20 page ruling from US Customs.

http://www.cbp.gov/linkhandler/cgov/trade/legal/informed_compliance_pubs/icp013.ctt/icp013.pdf

There wasn't that simple? There is a much longer court case on this subject but i wasn't able to locate the transcript on the net. Now up here in the great white north the customs tariff further breaks screws down into, coach screws, wood screws, selftapping screws, cap screws, machine screws, drywall screws, sems, and other. Yet when I called the office that is in charge of this part of the tariff they admitted that nobody there knew the differences between the different types because it was written so long ago that the people involved are probably dead.

But we are still faced with the problem that a socket head cap screw from China is duty free but a socket head screw that is NOT a cap screw is subject to 180% antidumping duty. The typical answer a client gives to the question "is your screw a cap screw or not?" is usually "You're kidding right?"

The anti-dumping legislations is all clearly explained to us in a document with such paragraphs as: "There is a difference between wings screws and screws with wings, the former are excluded while the latter are, with the exception of machine screws with wings, included."

Welcome to my world and I hope that cleared up this question for you all.