[Mark was here]

According to your reasoning then, a one inch bolt embedded one and one half inches into concrete would be capable of holding the full tensile strength of the bolt.

Do you comprehend how a chain is as strong as it's weakest link?

Have you ever thought about why nuts are only so thick? Bolts do their work in the first threads, once you are in the proper amount, you do not gain any more strength.

And to answer your stupid question, no I do not have anything to do with the Big Dig, except pay taxes.

[gas0linealley]

You seem unable to comprehend what is being discussed regarding the bolt failure. The stupidity isn't mine.