Fastener Standards

Good afternoon IIIgigi.

Which SAE specs? SAE J403 and 404 give only chemistry, not dimensions or anything else, compared to ASTM A108, for example. SAE J995 gives test data for nuts, protocols, lot sizes as well as chem limits.

ASTM A 449 gives a complete schema of chemical, manufacturing, mechanical testing, dimensional, testing, coatings and other workmanship finish and appearance requirements.

So does SAE J429 for externally threaded fasteners,or J1199 for metric externally threaded fasteners. (which I'm thinking are the specs that you really need to cite given your "SAE Gr. 5" callout)

So It depends which spec compared to which spec, and your SAE gr 5 is insufficent to tell...

There is more to equivalency between materials than Chemistry. Manufacturing methods are implied or spelled out which could result in =nonconformance if not specified.

So if someone did create a "cross reference chart," (say, based on chemistry, or chem and mechanical properties) it would either be useless because of omissions- or it would be so loaded with footnotes ("product must be headed- methods other than ...are permitted only by ...") as to be too complicated, confusing and dangerous to use.

Purchase the applicable specifications and standards. Lives of people are held in the balance by the performance of engineered products so controlled and manufactured.

PS, there can be confusion to some of the ISO grade designations as well. ISO 898-1 for externally threaded fasteners comes to mind...

milo

This link allows you to pull up most specs - MIL, NASA, NAS, SAE etc. If you have access to Naval Ships Technical Manual (NSTM), Chapter 75 details ALL fasteners.

http://everyspec.com/

Thanks for the great link. This will be a godsend for Mil stds.

It does not seem to include copyrighted ASTM, SAE specs however.

Still, great resource.

milo

Great Link - thanks for sharing.

Watch out!!! If I ever see ya I'm gonna kiss you profusely for providing that link!!

Thanks

Hooker

I'll remember to keep my Halloween costume close by at all times! I understand how frustrating it can get to find basic specs, especially since most FED, MS and NAS documents have been converted to the standardized ASTM, SAE, etc.

I looked over the NSTM manual and see that it is open to the public, but there isn't a way for me to attach the PDF file for the Fasteners Chapter 75, but did find a link to it on the everyspec website. It has references to the different specs, and their counterparts. Plus it's just a great reference document for every type of fastener.

http://www.everyspec.com/USN/NAVSEA/download.php?spec=S9086-CJ-STM-010.005629.pdf

Hi Milo,

I meant SAE J429 grades. Is it possible to have a cross reference chart of SAE J429 vs applicable ASTM specs? This would be "equivalency" in mechanical & chem. for people's reference

Thank you for the comment!

Try this link to the Federal Supply Assist document webpage. SAE J429 falls under FSC area 53GP - the link is to all the docs under that area on the Assistdocs.com website. Unfortunately the site can be very character specific when searching for specs (esp MIL specs), but if you know the supply catagory the item you want to find the standard for, you most likely can find an associated MIL, FED, etc standard.

Your on your own from here!

http://www.assistdocs.com/search/results.cfm?StartRow=1&PaginatorPageNumber=1&fsc%5Farea=53GP&status%5Fall=ON&search%5Fmethod=FSC%5FAREA

Here's the home page basic search address

http://www.assistdocs.com/search/search_fsc.cfm

and you can also get there from here, which is on the everyspec site

http://www.everyspec.com/resources.php

Hello there,

Your reply has a wealth of resources for all to use. I vote GA to each reply. Knowledge is power and sharing it shows your strength.

Thanks.

Thank you - It's my pleasure to share this type of information. Decent resources should be easier to find for everyone.

Not sure if it is possible to send this Forum thread to General or Mech Engineering sections, where it would be more relevant.