2007-09-18, 02:36 PM
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#17
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Seņor Cheap Bastarde
Real Name: Dean
Join Date: May 2003
Location: $99 Tire Store
Posts: 9,294
Car: $.04 STI
Class: Fast,Cheap & Reliable=STI
Deal, did somebody say Deal? Oh, Dean, yeah that's me.
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Class = ISO = Metric
Grade = SAE = English
Not directly equivalent.
If you want more detail than my last link, try this one...
http://www.americanfastener.com/tech...ings_steel.asp
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I am a Commodore PET --- Now get off my lawn you kids... 
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