What are Screws? If it has a head on one end it is a screw. The head is driven or turned with a screw driver or sometimes with a wrench. The diameter ranges vary to meet demands and needs of specific products. Screws are generally turned into an object, like a piece of wood, so the head needs to be bigger than the surface. This prevents the screw from being turned further than the length of the screw itself. There are a few exceptions. For example, set screws have smaller heads and have special uses. There are a few screws that are tightened counterclockwise but most of them are tightened by turning clockwise. What are Bolts? Bolts are screws that rotate into a matched nut to tighten it. Bolts have a bigger head than the shaft, with a few exceptions. Carriage bolts and J-bolts are among those exceptions. The shafts of bolts are not tapered, whereas many screws are tapered. The main difference between a bolt and a screw is that a typical screw can work on its own and a bolt requires a nut to secure it. With the exception of the Machinery’s Handbook, which states, “A bolt is an externally threaded fastener designed for insertion through holes in assembled parts, and is normally intended to be tightened or released by torquing a nut. A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, of mating with a preformed internal thread or forming its own thread, and of being tightened or released by torquing the head,” there are few places that attempt to define the difference between a screw and a bolt. The important thing to remember is that each has its own purpose and you should be careful to use the right screw or bolt for the project that you are working on. You should find out what the bolt or screw is made of and what strength it is capable of before you choose a bolt or nut for your project. Screws and bolts do many of the same things but there are many types and you should consider what you need it to do before choosing one or the other. www.melfast.com/blog/2010/11/what-is-the-difference-between-a-bolt-and-a-screw/
What happens if you use a washer which hole is slightly too big for the threaded end of the screw, but still small enough to just barely hold onto the edges of the screw head?
Hello Yang, Could you please help me out with Pressure Cone creation for Bolted joints with Blind Thread...? The joints with nut in the bottom I understood but with blind threads like in tapped Boss, I am slightly confused. I would request you to get me some link for this case. Best Regards! Samrat
هیچ تمایز جهانی پذیرفته شده بین یک bolt و یک screw وجود ندارد. یک تمایز ساده که اغلب درست (اگرچه نه همیشه) میباشد این است که یک bolt از میان یک بستر میگذرد و یک مهره در طرف دیگر آن قرار میگیرد، در حالی که یک screw به طور مستقیم به بستر پیچ میشود و هیچ مهرهای وجود ندارد. هندبوک ماشین آلات این تفاوت را اینگونه شرح میدهد: یک bolt اتصالدهندهای است که سطح خارجی آن رزوه شده است و برای عبور از میان سوراخهای تعبیهشده در قطعات مونتاژ طراحی میشود، و به طور معمول با چرخاندن یک مهره سفت یا باز میشود. یک screw اتصالدهندهای است که سطح خارجی آن رزوه شده است و قادر به وارد شدن درون سوراخهای قطعات مونتاژی، جفتشدن با رزوه داخلی تعبیه شده یا ایجاد رزوه خود است و با چرخاندن سر پیچ میتواند بسته یا شل شود. akogroup.ir/%D8%AA%D9%81%D8%A7%D9%88%D8%AA-%D8%A8%DB%8C%D9%86-%D9%BE%DB%8C%DA%86-%D9%88-%D9%85%D9%87%D8%B1%D9%87-bolt-%D9%88-%D9%BE%DB%8C%DA%86-screw/ باید به این نکته اشاره شود که الزاما همه قطعاتی که در آنها از پیچ استفاده می شود از قبل دارای رزوه نیستند. برخی از اشیاء رزوه از پیش ساخته دارند، در حالی که در برخی دیگر رزوه در حین نصب پیچ ایجاد میشود. بنابراین ، تفاوت اساسی بین پیچ و مهره و پیچ در این است که پیچ و مهره برای اتصال قطعات رزوه دار استفاده می شود، در حالی که پیچ برای سرهم بندی کردن قطعات بدون رزوه نیز میتواند استفاده شود. بنابراین، پیچها می توانند رزوه خود را در طی مراحل نصب ایجاد کنند. www.fooladiranian.com/%D8%AF%D8%A7%D9%86%D8%B3%D8%AA%D9%86%DB%8C%D9%87%D8%A7%DB%8C-%D8%A2%D9%87%D9%86/2098/%D9%85%D9%82%D8%A7%DB%8C%D8%B3%D9%87-%D9%88-%D8%AA%D9%81%D8%A7%D9%88%D8%AA-%D8%A8%DB%8C%D9%86-%D9%BE%DB%8C%DA%86-%D8%A7%D8%B3%DA%A9%D8%B1%D9%88-%D9%88-%D9%BE%DB%8C%DA%86-%D8%A8%D9%88%D9%84%D8%AA
![[UNCUT] "บอสณวัฒน์" แฉ! แหล่งซุกเงินแก๊งบอส ขยันผิดที่ไม่กี่ปีก็เข้าคุก l คนดังนั่งเคลียร์ l17ต.ค.67](http://i.ytimg.com/vi/BL56qIfXYZM/mqdefault.jpg)
Sir please upload the Lecture 29 ! you save so many engineers life
YOU sir just saved my mid term exams thanks a lot.
Thank you so much sir .
You safe my mid-term test.
Great video and explanation, love it 💚💯🔥
THANK YOU SO MUCH!!!!!! Engineering life x100000 saved. :)
Impressive👍
Excellent presentation. Thank you for sharing
Thank you!! You’re a life saver.
my respects man! this material is super useful
What are Screws?
If it has a head on one end it is a screw. The head is driven or turned with a screw driver or sometimes with a wrench. The diameter ranges vary to meet demands and needs of specific products. Screws are generally turned into an object, like a piece of wood, so the head needs to be bigger than the surface. This prevents the screw from being turned further than the length of the screw itself. There are a few exceptions. For example, set screws have smaller heads and have special uses. There are a few screws that are tightened counterclockwise but most of them are tightened by turning clockwise.
What are Bolts?
Bolts are screws that rotate into a matched nut to tighten it. Bolts have a bigger head than the shaft, with a few exceptions. Carriage bolts and J-bolts are among those exceptions. The shafts of bolts are not tapered, whereas many screws are tapered. The main difference between a bolt and a screw is that a typical screw can work on its own and a bolt requires a nut to secure it.
With the exception of the Machinery’s Handbook, which states, “A bolt is an externally threaded fastener designed for insertion through holes in assembled parts, and is normally intended to be tightened or released by torquing a nut. A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, of mating with a preformed internal thread or forming its own thread, and of being tightened or released by torquing the head,” there are few places that attempt to define the difference between a screw and a bolt. The important thing to remember is that each has its own purpose and you should be careful to use the right screw or bolt for the project that you are working on. You should find out what the bolt or screw is made of and what strength it is capable of before you choose a bolt or nut for your project. Screws and bolts do many of the same things but there are many types and you should consider what you need it to do before choosing one or the other.
www.melfast.com/blog/2010/11/what-is-the-difference-between-a-bolt-and-a-screw/
Thanks sir.. your Lectures are very useful..
Thanks a million! WHICH TEXTBOOK ARE YOU USING PROFESSOR?
i love you man u just saved me 🙋🙋🙋
Excellent explaination expecting more video tutorial from you
Is the connecting bolt increasing the stiffness of the sum of the stiffness of the separated materials?
Hi Where can I download the table 8
thank you for this simplification ,, i ask that if you can give us the tables that you are used 😃
What happens if you use a washer which hole is slightly too big for the threaded end of the screw, but still small enough to just barely hold onto the edges of the screw head?
我只能说 曹老师 牛逼 !
Hello Yang,
Could you please help me out with Pressure Cone creation for Bolted joints with Blind Thread...?
The joints with nut in the bottom I understood but with blind threads like in tapped Boss, I am slightly confused. I would request you to get me some link for this case.
Best Regards!
Samrat
Please tell me what is the difference between bolt and screw.. Iso 4014 and 4017. Can I use bolt in tapped hole.?
bolt needs a nut while a screw don't
At what length we can tight the screw....
please sir, in your lecture, you are referring to a text book but you have not quoted the textbook and the author.....thanks alot ...
shigley's mechanical design
very intersting but i cant see the quetion b/c u give only the given value
i want to ask you the pdf if you can ??
Leecture 29:
Play video in the link after 57:42
th-cam.com/video/UpZWOYdbYM8/w-d-xo.html
Do some math over aniroid barometer so we get rid of energy crisis round the 🌎 globe
هیچ تمایز جهانی پذیرفته شده بین یک bolt و یک screw وجود ندارد. یک تمایز ساده که اغلب درست (اگرچه نه همیشه) میباشد این است که یک bolt از میان یک بستر میگذرد و یک مهره در طرف دیگر آن قرار میگیرد، در حالی که یک screw به طور مستقیم به بستر پیچ میشود و هیچ مهرهای وجود ندارد. هندبوک ماشین آلات این تفاوت را اینگونه شرح میدهد:
یک bolt اتصالدهندهای است که سطح خارجی آن رزوه شده است و برای عبور از میان سوراخهای تعبیهشده در قطعات مونتاژ طراحی میشود، و به طور معمول با چرخاندن یک مهره سفت یا باز میشود. یک screw اتصالدهندهای است که سطح خارجی آن رزوه شده است و قادر به وارد شدن درون سوراخهای قطعات مونتاژی، جفتشدن با رزوه داخلی تعبیه شده یا ایجاد رزوه خود است و با چرخاندن سر پیچ میتواند بسته یا شل شود.
akogroup.ir/%D8%AA%D9%81%D8%A7%D9%88%D8%AA-%D8%A8%DB%8C%D9%86-%D9%BE%DB%8C%DA%86-%D9%88-%D9%85%D9%87%D8%B1%D9%87-bolt-%D9%88-%D9%BE%DB%8C%DA%86-screw/
باید به این نکته اشاره شود که الزاما همه قطعاتی که در آنها از پیچ استفاده می شود از قبل دارای رزوه نیستند. برخی از اشیاء رزوه از پیش ساخته دارند، در حالی که در برخی دیگر رزوه در حین نصب پیچ ایجاد میشود. بنابراین ، تفاوت اساسی بین پیچ و مهره و پیچ در این است که پیچ و مهره برای اتصال قطعات رزوه دار استفاده می شود، در حالی که پیچ برای سرهم بندی کردن قطعات بدون رزوه نیز میتواند استفاده شود. بنابراین، پیچها می توانند رزوه خود را در طی مراحل نصب ایجاد کنند.
www.fooladiranian.com/%D8%AF%D8%A7%D9%86%D8%B3%D8%AA%D9%86%DB%8C%D9%87%D8%A7%DB%8C-%D8%A2%D9%87%D9%86/2098/%D9%85%D9%82%D8%A7%DB%8C%D8%B3%D9%87-%D9%88-%D8%AA%D9%81%D8%A7%D9%88%D8%AA-%D8%A8%DB%8C%D9%86-%D9%BE%DB%8C%DA%86-%D8%A7%D8%B3%DA%A9%D8%B1%D9%88-%D9%88-%D9%BE%DB%8C%DA%86-%D8%A8%D9%88%D9%84%D8%AA