New Bolting - BTHK and Stud Bolts

I am setting aside PARA 6 on my components as my bolt length information (BTHK) reference attribute.  Typically we use stud bolts.  Initially I put the face of the flange and the flange thickness, and that is only what I got out of ISODRAFT.  I thought if the BTYP was stud that it would throw in the 2 nut heights but it looks like it does not.  Seeing that it does not, is it best to add that information into my PARA 6 data, or add it to the XTRA data so I can be flexible for SBOLs with either machine bolts (1 nut) or stud bolts (2 nuts).

RocketMan

Add it to the XTRA length

Thanks Pitch.

Also, I found the document that you posted a while back to be very helpful.

Were you the author of that document?

RocketMan

Yes I was.
I wrote it way back to help some guys I was working with.
They found it dificult to follow the manual.

Great.  One of the things that was key in your manual was setting the BLTM attribute at the spec level to the string NEW.  It's hard to catch that in the manual, at least it was for me.  Thanks again.

Do you recommend using a BOLT specification or just adding it to each spec?

RocketMan

I use Individual bolt specs based on bolt material.

Again, thank you Pitch.  That is very helpful and I will follow your recommendation of bolt spec per bolt material.

RocketMan