A325/A490 Bolt Mfg Head Marks

[yaschief]

Is there a recent list available that gives an accurate representation of the specific bolt head marks (logos) for US/Asian bolt makers?

I have been using a number of Fed/State DOT reference sheets which give a fair representation of the US manufacturers but with the recent expansion of the Asian import market, I'd like to have an updated reference list with drawings/photos for my Inspectors and Engineers to use.

TIA,

Stoney

 

[TVP]

Here are the two best resources of which I am aware:

http://www.uspto.gov/sites/default/files/trademarks/law/fastener/FQA_Registry.pdf

http://www.fastenertech.com/bookstore.asp

(Fastener Technology International Manufacturer Identification Symbols International Guide, $60)

 

[yaschief]

I have used the Illinois DOT guide, attached, but as you can see it does not reference any Asian makers.

If anyone can post a link to a downloadable doc or pdf that is more accurate, I would appreciate it.

 

[TVP]

Um, did you click on the 1st link that I provided above? Downloadable .pdf with numerous manufacturers from PRC, ROC, India, etc.

 

[yaschief]

Yes. Just saw it. Thanks.

 

[CoryPad]

One more excellent source is MIL-HDBK-57, available for free from ASSIST:

http://quicksearch.dla.mil/

 

[yaschief]

Thanks!