Nitto Seiko Co., Ltd. engages in the manufacture and sale of industrial fasteners and assembly machines. It operates through the following segments: Fastener, Industrial Machinery, and Control Equipment. The Fastener segment manufactures fasteners for industrial use and other metal products. The Industrial Machinery segment designs and manufactures screws, nuts, pins, rivets and fastening tools. The Control Equipment segment supplies fluid meters and other controlling devices. The company was founded on February 11, 1938 and is headquartered in Ayabe, Japan.