Stud Material
Stud Material
(OP)
Sorry about the basic question, but we have ran into situation for a particular project were we need to turn a custom stud.
The stud will be 5/16" in diameter and will need to be torqued to 18 ftlbs.
The threads will be cut to M8x1.25x15mm on either side. The total lenght of the stud is 201mm.
Being that the stud is so long and the torque needed I would expect basic mild steel would be out of the question.
What material recommendation would you have?
As well when the stud threads bottom is it advisable to have a shoulder as to elimante the threads from binding into each other?
The stud will be 5/16" in diameter and will need to be torqued to 18 ftlbs.
The threads will be cut to M8x1.25x15mm on either side. The total lenght of the stud is 201mm.
Being that the stud is so long and the torque needed I would expect basic mild steel would be out of the question.
What material recommendation would you have?
As well when the stud threads bottom is it advisable to have a shoulder as to elimante the threads from binding into each other?





RE: Stud Material
The length is not really an issue if you have enough threaded length such that the nut does not run out of threads during tightening.
Not sure what your second question is referring to, bottoming the stud in a threaded hole, bottoming a nut against the thread runout, but if the latter, I would provide enough thread length to prevent it. If the former, maybe no harm in it.
Regards,
Mike
RE: Stud Material
The second question I had was that the studs do not bottom out, as the hole is thru. I was concern with tightening the stud until the threads run out or bind into the hole threads. I've seen some circumstances where a shoulder is machined after threads to distribute the load evenly.
RE: Stud Material
Gr5 are usually alloys steels, 4130 and 4140 being common. These are heat treated with a quench and temper.
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RE: Stud Material
RE: Stud Material
RE: Stud Material
RE: Stud Material
RE: Stud Material
Regards,
Mike
RE: Stud Material
Regards,
Cory
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RE: Stud Material
RE: Stud Material
Any idea what 1144 would be used for?
RE: Stud Material
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.