×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

A325 Fasteners, Torquing
2

A325 Fasteners, Torquing

A325 Fasteners, Torquing

(OP)
Hello Gents,

Just a basic question, I am trying to connect modular platforms with 5/8" A325 bolts with A194H nuts. There will be a flat washer on the nut end and a direct tension indicator on the head end. Just wondering if it is ok to apply the torque in the nut end? I assume not because the tension washer is on the head end, but what if we put the washer on the nut end? I still don't think it is possible because the torque may mess up the threading? Would like confirmation with someone more experienced as I am a newbie. =)

Cheers,

Jeff

RE: A325 Fasteners, Torquing

Look up the published information from the maker of the washers, It may say different than you will hear from us. I say put it at the unturned end although one manufacturer did have instructions for the turned end. The washer does not mess with the threads.

I thought everyone used the tension set bolt these days.

Michael.
Timing has a lot to do with the outcome of a rain dance.

RE: A325 Fasteners, Torquing

I'm looking at an Applied Bolting DTI Installation sheet and the show that the DTI is acceptable under either the bolt or the nut. If under the nut, you must use a washer. If under the bolt, you must prevent rotation of the bolt head.

Plus a bunch of other caveats.

RE: A325 Fasteners, Torquing

(OP)
nice! thanks azcats. I guess torque typically applied in the nut end. I didn't know that! And the DTI can be applied on either ends of the fastner. Thanks for all your help!

Good Day!

Cheers,

Jeff

RE: A325 Fasteners, Torquing

Agree with azcats. As long as you don't gall the surface of the DTI, you can place it on either side. Tensioning is normally done from the nut side. A washer between the DTI and the turned item will prevent galling.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources