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03-25-2014, 03:37 PM #1
Cans sized by number?.... oh boy.
In any case, if I understand you correctly, there is no such thing as a screw with a certain diameter that can be expressed in fractions. Instead, the diameter is a non expressionable value, chosen in such way that it approximates a fractional size such as 1/16, but which allows you to count a whole number of threads per inch?Til shade is gone, til water is gone, Into the shadow with teeth bared, screaming defiance with the last breath.
To spit in Sightblinder’s eye on the Last Day
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03-25-2014, 03:46 PM #2
Yes cans are actually numbered.
Standard Can Number Sizes - Everything2.com
The smallest fractional fastener would be 1/4-20 or 1/4-24 depending on whether you need coarse or fine thread. Smaller than that are numbered fasteners, beginning with 10-24 or 10-32 depending again on whether you need coarse or fine thread. The smallest being 00-90.Last edited by Splashone; 03-25-2014 at 03:48 PM.
The easy road is rarely rewarding.
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03-25-2014, 04:14 PM #3
Here's a 'Pitch Gauge' you use it to find how many threads per inch or MM a screw or bolt has. This happens to show MM.
Regardless of how you are measuring something, if a rod was Exactly the same size as the inside diameter of the washer it wouldn't 'slide' through. If the washer was heated then the rod would 'press' through. However once the washer had cooled the rod couldn't rotate! That's why when a washer is called say 1/8" the ID is actually larger! In some cases much larger! I've used a 7/16" washer with a 1/2" bolt!Our house is as Neil left it- an Aladdin’s cave of 'stuff'.
Kim X