ImThere
Well-Known Member
That 4500# is tinsel strength, the amount of force required to pull the bolt in half with a straight inline pull. I guarantee you that if you take a 1/4" grade 8 bolt in a vise, slip a 1 foot piece of pipe over the bolt and give it a good pull, you'll break the bolt.
But you are pulling equally on both sides of the bolt.
Try your guarantee. Video you pulling on both sides of the bolt and break it in half.
I wish I had a force meter large at work so I could quantify the effort required they way you said to break a bolt. I honestly don’t think it is as easy as you think. Not a grade 8
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