We will meet a wide range of needs through improvements in equipment, personnel, and systems!
We provide high-quality products with commitment and responsibility, including fastening components for residential buildings to ensure seismic resistance, essential fastening components for infrastructure such as roads and railways, and fastening components for construction and agricultural machinery. Both our headquarters and Saitama factory produce through a consistent process from wire materials, and to ensure stable supply of products, we not only enhance production facilities but also continuously improve the working environment and consider the impact on the environment. 【Product Examples】 ■ Hex Bolts ■ Upset Bolts ■ KY Speed Bolts ■ Structural Torx High Strength Bolts ■ Inserts, etc. *For more details, please download the PDF or feel free to contact us.
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【Main Steel Materials】 ■Nakayama Steel Works ■JFE Steel ・Carbon steel wire for cold heading ・Alloy steel for mechanical structures ・Boron steel ・Mild steel wire, etc. *For more details, please download the PDF or feel free to contact us.
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Since our founding in 1946, we have dedicated ourselves to "screw manufacturing," cherishing the many encounters with our customers while actively pursuing new innovations. Under the corporate philosophy of "being loved and contributing to society," we have made it our quality policy to "always provide products that satisfy our customers." Moving forward, as "Kyoei, the beloved screw," we will continue to strive for further improvement and contribute to our customers and society.