Whatever you are doing, this is not the correct approach. The list of "common size bolts" used on an AD is the same as a list of "Common size bolts". Mostly UNC and some UNF. If you state the activity you want to perform, it would help. I can't give you my valued opinion until I know what you are doing, if anything.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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