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A325/A490 Bolt Mfg Head Marks

A325/A490 Bolt Mfg Head Marks

A325/A490 Bolt Mfg Head Marks

(OP)
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

RE: A325/A490 Bolt Mfg Head Marks

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

RE: A325/A490 Bolt Mfg Head Marks

(OP)
Yes. Just saw it. Thanks.

RE: A325/A490 Bolt Mfg Head Marks

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

http://quicksearch.dla.mil/

RE: A325/A490 Bolt Mfg Head Marks

(OP)
Thanks!

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