協栄製作所 List of Products and Services

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.

• bolt
• nut