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Friday, December 9, 2011

Screw Sizes

One of the most widely read posts on this blog is on the topic of screw sizes.  If you don't recall it word for word, it is worth re-reading it now.  It is now obvious to me that the correct formula is

               diameter =  
where N is the number of the screw. This is rigged so that a #1 screw is 1/16 inch, and #5 is 1/8 inch. And amazingly, a #10 comes out to 3/16 inch. Incredible. So in a nutshell, we start at 0 being 1/16 and go up by 1/16 for each 5 numbers.

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