Quote:
Originally Posted by javadog
True, a 7/16-20... Always wondeed what the story was on that... Goes back years...
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What I heard, the US safety standards had that size bolt specified. Since the USA is the biggest part of most car markets, and that is the majority of what parts are on the market for car builders to use, they all adopted it as standard. Even cars made in foreign countries for other foreign car markets find it cheaper to buy a bolt that KNOW is designed to do the job safely and correctly. Why spec a bolt of another size that cost more than the mass produced ones.