The Industrial Fasteners Institute (IFI) is an American non-profit trade and standards organization and publisher, based in Independence, Ohio. It was founded as the American Institute of Bolt, Nut and Rivet Manufacturers in 1931 and changed its name to the IFI in 1949. Among their publications is the frequently cited ''IFI Fastener Technology Handbook'', a reference frequently used as a design guide by mechanical engineers, machinists, and others involved in the production of high-quality machine screws, bolts, nuts, and other engineered fasteners.
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