Of course Hi-locks fit into the UN series that I mentioned before. e.g A first oversize for a 10 UNC hilock fastener would be 11 UNC that is 0.19'' + 0.013 and so just from the basis of knowing that the Unified series starts at 60 thau (0 UN) and progresses at 13 thau per progression. All bolts and oversize bolts can be calculated.
Now I would go on the explain a "Geometric progression" series like the BA range but I fear time-ex may not be able to keep up.
It is just a percentile increse in simple terms. But I digress from the topic.
