<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> Don't use a bolt, use a stud that you make yourself to whatever tolerances you care about.
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i thought about going this route but was thrown off by the rule that says all critical hardware must be grade 8 or higher. Besides, tolerance on a NAS bolt is .001", and can get reamers with even closer tolerances. Good enough for me to design to.