FujiSeisakusho has exclusively been a nut maker for more than sixty years.
One of their primary areas of concentration is large cut nuts. Since FujiSeisakusho became approved as a Japanese Industrial Standards compliant manufacturer in 1975, they have continued their tradition of quality production with confidence.

They are proud of always having a wide range of steel in stock and in their capacity to produce nuts ranging in thread size from M10 to M150.

Particularly when it comes to extremely large nut sizes, Fuji has become so well known that other companies often recommend their services.
Their skilled workers utilize traditional techniques that demonstrate their dedication to production, making the impossible possible.
To meet the demands of changing times, their designers and developers work hard, trying a range of different strategies until they find the optimal solution.
Many of these efforts have resulted in patents.

In March 2002, they obtained ISO 9001 certification, and created a production system to cover all of their processes without muda (waste).
They then implemented a motto of creating better products faster and at a lower cost.