
1) Vehicle part
Found on
https://www.crosswordclues.com/clue/lug-nut

A lug nut or wheel nut is a fastener, specifically a nut, used to secure a wheel on a vehicle. Typically, lug nuts are found on automobiles, trucks (lorries), and other large vehicles utilizing rubber tires. ==Design== A lug nut is a nut with one rounded or conical (tapered) end, used on steel and most aluminum wheels. A set of lug nuts are typica...
Found on
http://en.wikipedia.org/wiki/Lug_nut

a large nut fitting on a heavy bolt, used esp. in attaching a wheel to a motor vehicle.
Found on
https://www.infoplease.com/dictionary/lug-nut
No exact match found.