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Permanent Technologies, Inc. manufactures, designs, and engineers vibration proof fastening systems in the United States and internationally. It primarily offers the TineLok product, a patented, one-way nut and bolt combination, which locks the nut and bolt at predefined positions, eliminating the possibility that vibration may loosen the nut or bolt. The company's fastener assemblies include hex, socket, square, metric hex, metric socket, and metric square head bolts and nuts. Its products are used in various applications, such as automotive, plumbing/valve assemblies, aerospace, marine/military, research and private, defense, agriculture, structural, railways, electronic and medical, as well as highway, bridge, and tunnel applications. Permanent Technologies, Inc. was incorporated in 1994 and is headquartered in Quincy, Massachusetts.