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


Threaded SMC fittings

Threaded SMC fittings

Threaded SMC fittings

Hi friends, I make design of new part for hot pressing from SMC prepreg. And I need to add two usual fittings with external thread 1" and 1/2" as elements of the part. But my moldmaker says that it is impossible to make threads from SMC well as it's impossible to cut threads on ready parts! I absolutely do not want to use special small metal inserts for bolts and use flanges but not standard inch fittings! Could you please recommend how to make thread from SMC composite?

Hope for your kind help!

RE: Threaded SMC fittings

You have provided very little useful information. Sure it is possible to mold or to cut threads in SMC. They will not be as strong or durable as threads in metal. Will they be strong enough for your application? That is for you to determine. Perhaps your molder has already decided, based on his knowledge.

RE: Threaded SMC fittings

Thank you for reply!
We need usual fittings 1" and 1/2" for standard nuts on our part, max pressure is 10 bar, but temperature cycles until 120-150C are possible - that's why I do not want any inserts, but only original SMC body.

RE: Threaded SMC fittings

Oh, maybe somebody knows examples of threaded SMC parts or even of SMC fittings? Send me please useful links for understanding of problem.

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!


White Paper – Your Construction ERP RFP Checklist
Selecting business software for a medium to enterprise-sized construction concern is extremely challenging in large part because most enterprise resource planning (ERP) suites originated in the world of repetitive manufacturing and are therefore a poor fit for a project and asset-centric business. However, midsize to large contractors need the predictable, auditable processes that ERP delivers. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close