×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Identifying Bolt from Head Markings

Identifying Bolt from Head Markings

Identifying Bolt from Head Markings

(OP)
Hi, I'm investigating an existing building and have come across some bolts stamped "SS L393/1 GS M", does anyone know what this refers to?

In the UK I'm used to seeing standard markings like "M8.8" of "A4-70" but I've never seen this sort of thing, I assume it's a non-european standard.

Any help would be appreciated

RE: Identifying Bolt from Head Markings

(OP)
Thanks desertfox, unfortunately no luck with the info on that page.

To add context, this is a structural bolt in a steel framed building, I would expect it to be carbon steel (typical for this environment) and it is a hex head, approx size M20.

RE: Identifying Bolt from Head Markings

SS might be stainless steel (which I realize you don't expect, but you never know).
Try permanent magnet test. If it doesn't attract, almost certainly stainless. If it does attract, somewhat inconclusive (some SS does attract)



=====================================
(2B)+(2B)' ?

RE: Identifying Bolt from Head Markings


You might be looking at someones "special bolt", with a part number rather than a proper head marking.

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! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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