[QUOTE=pitch;19227]Mach and stud are not the same thing.
MACH is a machine bolt which has a Head usually hexagonal and can be supplied with or without a single nut
A stud has no head and can be supplied with or without a single nut
Studbolt has no head and is usually supplied with 2 nuts.
When it comes to PDMS bolting, try not to think of the BTYP as being relative to a specific type of bolt. Rather think in terms similar to STYP in piping specs.
The difference is that in a BOLTSPEC the BTYPes have an order of priority.
If one side of a joint has a btyp of MACH and the other side has a btyp of STUD Then STUD will take priority over MAC and the bolt with the BTYP STUD in the spec will be used.
I have already posted a paper on bolting on this site. Try to read it and see if that helps a little
Thanks Pitch for your answers.
I have been in pulp and paper for 20 year with piping and have never seen jacking bolts.
Regarding the bolting I think that I was not so good in explaining my quest.
I know the different in the reality between STUD and MACH.
Regarding the rest of the types I was thinking it as a specific type of bolt not only as a selection priority in bolt spec.
[QUOTE=pitch;19227]Mach and stud are not the same thing.
MACH is a machine bolt which has a Head usually hexagonal and can be supplied with or without a single nut
A stud has no head and can be supplied with or without a single nut
Studbolt has no head and is usually supplied with 2 nuts.
When it comes to PDMS bolting, try not to think of the BTYP as being relative to a specific type of bolt. Rather think in terms similar to STYP in piping specs.
The difference is that in a BOLTSPEC the BTYPes have an order of priority.
If one side of a joint has a btyp of MACH and the other side has a btyp of STUD Then STUD will take priority over MAC and the bolt with the BTYP STUD in the spec will be used.
I have already posted a paper on bolting on this site. Try to read it and see if that helps a little
Thanks Pitch for your answers.
I have been in pulp and paper for 20 year with piping and have never seen jacking bolts.
Regarding the bolting I think that I was not so good in explaining my quest.
I know the different in the reality between STUD and MACH.
Regarding the rest of the types I was thinking it as a specific type of bolt not only as a selection priority in bolt spec.
