Sugiura Seisakusho Co., Ltd.- Manufacturer of Nuts and Bolts in Nishio City, Aichi Prefecture.





Nuts and bolts, which are used to connect things together, have served an important role in the development of various technologies. In recent years, technology has been advancing at a fast pace, bringing with it massive developments in manufacturing technologies, and a significant expansion in the role of fasteners in such technologies. As a manufacturer that specializes in metal fasteners, we provide various technologies that are adapted to the needs of our time. Our ultimate goal is to support our clients, helping further develop their businesses and open up their futures.


Akihiro Sugiura

Thank you for visiting Sugiura Seisakusho’s website. Our company was founded in 1939 and is a manufacturer and seller of small forged products, mainly nuts for the automotive industry.

We would like to express our gratitude to our customers and all those who have been involved in our company for their support over the past 80 years, which has enabled us to grow into one of the largest nut manufacturers in the industry while overcoming many hardships.

Today’s automotive industry is in the midst of major changes such as electrification and carbon neutrality. Even under such circumstances, we will contribute to the development of the industry as a whole through the manufacture and sale of small forgings based on the technologies and on-site capabilities we have accumulated since our founding, and aspire to “Purpose” to “connect things with things, smiles with the future with unwavering passion for the happiness of all people.

We look forward to your continued support and guidance in the future”.

President and Representative Director
Hiroshi Sugiura

Akihiro Sugiura
  • Connect things with things,
    smiles with the future with unwavering passion for the happiness of all people

  • Thinking about tomorrow,
    we strive to put ourselves in the customer’s shoes and contribute to the local community.



  • Name

    Sugiura Seisakusho Co., Ltd.

  • President and
    Representative Director

    Hiroshi Sugiura

  • Date Established

    May 1939

  • Stated Capital

    48 million yen

  • Sales

    49 billion yen
    (consolidated/as of FY2023)

  • Number of Employees

    1,100 (consolidated/as of FY2023)

  • Business Activities

    Manufacture of functional and
    fastener automobile components

  • Main Clients

    Toyota Motor Corporation
    Hino Motors, Ltd.
    Daihatsu Motor Co., Ltd.
    Toyota Industries Corporation
    Toyota Auto Body Co., Ltd.
    Toyota Motor East Japan, Inc.
    AISIN SEIKI Co., Ltd.
    etc. *Random order; titles omitted