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Grade 5 is a bolt spec. A449 can be used for an anchor bolt when asked for a grade 5. F1554 is specific to anchor bolts. Gr 36 is the low end Gr 55 is weldable and Gr 105 is the high end. With Gr 105 there is no reduction over 2 1/2" dia as you find with A193 gr B7.

Thank you Crossframe!! That definetly gives me a goood answer to my question. To correct myself - in an earlier post I wrote A449 is = to A490. It is not A449 is an = to A325 and A354BD is = to A490. Both A449 and A354BD are common stud specs.

How does the heavy hex head of the A325 come into play? If you use the gr 5 you lose the heavy hex head and still have to use a A194 2H Heavy Hex nut. And if the larger SAE gr 5 is A449 then that is comparable to the ASTM A490 which have higher values than the A325. So are the specs simply...

csd, check out www.powers.com. They have a mechanical anchors section that may help out a little.

Bump ... Does anyone have any thoughts? I actually was having this conversation with a coworker today!! Any help is very much appreciated.

A449 would might be the spec for 2".