STUD AND BOLT
Sundaraj Anish
Dear experts,
I have a query and looking for earliest response
Bala Murugan
I think it answers all of your questions.
http://www.engineersedge.com/thread_strength/thread_minimum_length_engagement.htm
Regards,
BALA
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Harish Kannepalli
Minimum length shall be equal to diameter of bolt
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arturo diaz oliveros diaz
Pending Construction Code ASME B31.3 Parr. 335.2.3 Bolt Length.
Bolts should extend completely through their nuts. Any which fail to do so are
considered acceptably engaged if the lack of complete
engagement is not more than one thread.
Enviado: sábado, 13 de agosto de 2016 12:38 a. m.
Para: material...@googlegroups.com
Asunto: Re: [MW:25253] STUD AND BOLT
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Thulasi Das
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Dinesh Somwanshi
Dear,
As per api standard it shall be 1 thread only.Pls check project specs.
Regards
Dinesh
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Lakshman Kumar. B
Hi – when it comes to minimum, as per code some are refereeing to one thread, some are two thread, and some are three thread…
But your question is very tricky…
Understand the concept, bolts are intended to keep hold the parts together and as pet that No of threads in engagement will be decided and confirmed by the designer as per standard…
To ensure that all the threads are in engage – evidence of the engagement is that minimum one or two threads has to out from the nut.
But maximum is as per your convenience and application and situation…
If more threads comes out (Means stud length more),
It might get interfere with other equipment and place constrain is an issue.
Or else might be difficult to place the stud as the stud length is more.
Or threads may get rusted, and will difficult while removing the nut for a lengthy stud portions..
Or stud cost will be more…
Or operation & maintenance cost will be more (u have to prevent from rusting the stud threads, and applying compound for it regularly when it comes to sea environment and all)
Or more time for tightening and loosening (during break down time)
Like as so many other parameters will influence the situation…
There is no code defining for maximum length of threads come out from the nut…
As an engineer we should decide accordingly…
Thanks & Regards,
Lakshman Kumar B,
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Sajeev P
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Hemant W Joshi
CHECK the bolt length calculation as per ASME16.47
From: material...@googlegroups.com [mailto:material...@googlegroups.com]
On Behalf Of Sajeev P
Sent: Monday, August 22, 2016 11:36 PM
To: material...@googlegroups.com
Subject: Re: [MW:25291] STUD AND BOLT
For Process Piping B31.3, 335.2.3, Bolts should extend completely through their nuts. Any which fail to do so are considered acceptably engaged if the lack of complete engagement is not more than one thread.
Regards,
Sajeev
On Sat, Aug 13, 2016 at 6:47 AM, Sundaraj Anish <anishs...@gmail.com> wrote:
Dear experts,
I have a query and looking for earliest response
How many threads should protrude beyond the nut?
minimum 3 threads and maximum how many threads ?
Awaitng for your response
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