A nut with a built in washer like flange. Tee. A nut designed to be driven into wood to create a threaded hole. Square. A four sided nut. Prevailing torque lock. A non-reversible lock nut used for high temperature applications. K-Lock or Kep. A nut with an attached free-spinning external tooth lockwasher.
adjective. The definition of metropolitan is a city or something related to a city. A city and the immediate locations surrounding it is an example of a metropolitan area.
DEFINITION of 'Metropolitan Statistical Area-MSA'. A formal definition of metropolitan areas established by the Office of Management and Budget, a division of the U.S. Government. Metropolitan statistical areas serve to group counties and cities into specific geographic areas for the purposes of a population census and the compilation of related statistical data.