Anyone recognize this bolt

[charliealphabravo]

Anyone out there recognize this bolt spec?

It looks like it could be either SAE J429 or ASTM A354 but the triangle doesn't show up on my chart. It doesn't much matter for my purposes which it is but I'd like to learn the patterns for posterity. The bolt is on a structure in Alberta Canada.

Thanks in advance.


PS. It looks like the file attachment function is not working on the new forum. The bolt is about 1 inch diameter by 12 inches long has 6 radial lines stamped on the head with a solid triangle filling the space between two of the lines.

 

[PMR06]

Try this thread:

http://www.eng-tips.com/viewthread.cfm?qid=182327

 

[CANPRO]

I think the 6 lines indicate a grade 8 bolt. The triangle might just be a manufacturers stamp...not 100% sure though.

Found this reference while looking....seems like it could be useful

http://www.dot.state.il.us/materials/fasteneridentificationguide.pdf

 

[charliealphabravo]

That's it guys. Thank you.
Most of the hyperlinks are dead in the old post but the description matches.

I saw the DOT PDF also but nothing seems to match.