History
Some cars made prior to about 1960 used left-hand and right-hand screw thread for different sides of the vehicle to prevent loosening. It was later realized that the taper seat performed the same function. Modern vehicles use right-hand threads on all wheels.
Read more about this topic: Lug Nut
Famous quotes containing the word history:
“The history of medicine is the history of the unusual.”
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“All objects, all phases of culture are alive. They have voices. They speak of their history and interrelatedness. And they are all talking at once!”
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