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.
A metropolis is a large city or urban area which is a significant economic, political, and cultural center for a country or region, and an important hub for regional or international connections, commerce, and communications.n Mexico, the term metropolis is used to refer to an urban area of economic, political, and cultural importance. Mexico City represents all three factors as it is the country's capital and financial center. Other metropolis are Monterrey and Guadalajara, both metropolitan areas population over 4,000,000 inhabitants.