Our Strengths

A leading player
in the locknut industry

No. 1 in market share

Fuji Seimitsu continues to take the lead in the locknut industry. We believe that we have earned the trust of our customers through our track record and the quality that we have come to achieve so far, as well as our robust after-sales service and maintenance.

No. 1 in industry share

We're No. 1 in market share for domestic motorcycles.
We have established a solid position in the industry.

Expanding markets

Our products have been highly relied on in the mobility industry. As a result, they are now widely used in infrastructure such as bridge piers, railways, and civil engineering, as well as in the industrial world for machine tools, transportation equipment, and playground equipment.

For details, refer to U-TOWN to see
examples of our products in use, organized by market.

No. 1 in technical capabilities

In the world of machinery, the presence of locknuts in many products has allowed for miniaturization, cost reductions, and the prevention of accidents. With regard to the evolution and development of the locknut, we are engaged in the work with a sense of responsibility and awareness that there are things that only we at Fuji Seimitsu can do because we have the latest equipment and cutting-edge technology.

Refer to the U-TOWN product page for product details.

Aiming to be No. 1 in the world

We are confident it won't be too long before we come into a future where Fuji Seimitsu is recognized worldwide. In the future, we will be at the forefront of the rapidly growing wave of safety-oriented thinking. We will make Japan's top standard into the world's standard. This is the new mission for Fuji Seimitsu.

We firmly believe that the FUJILOK U-NUT, which boasts the best product quality in Japan, will be recognized in the global market.
In particular, we believe that the value and reputation of Fuji Seimitsu products in overseas markets will continue to grow in the future as we respond to high quality standards in Europe and address growing needs in the African motorcycle market.
To provide the world with Japan's best quality, we will incorporate the "safety and security" needs of countries outside of Japan. "FUJILOK U-NUT as a global standard"?
This is Fuji Seimitsu's global vision.

Masataka Wada, President

The possibilities of locknuts

Customer needs continue to constantly evolve. In response to this, we have created our the FUJILOK U-NUT and the FINE U-NUT products, which are representative of Fuji Seimitsu. In many countries, there is currently a trend of "price over quality," but the era of "better and higher quality" will surely come.
When that happens, we believe that Fuji Seimitsu and the value of the locknut will be recognized all over the world.

Future overseas expansion

Currently, we only have production bases in Taiwan and Indonesia, but we intend to aggressively expand overseas. We are currently looking at expanding into South America, India, and Africa. In those areas, the motorcycle industry alone is seeing an overwhelming amount of growth compared to Japan, so we can't ignore those locations. We also believe that needs will naturally change as the times and countries change.
In order to respond to further changes in needs in the future, we are considering the development of new "locknuts" other than the FUJILOK U-NUT and the FINE U-NUT as well as overseas expansion.

Top quality and full-scale support

Safety is top quality

Fuji Seimitsu products contain many critical safety parts. Instead of just selling nuts, our employees are more conscious of "delivering safety and security." Because our customers' needs are based on safety requirements, we only release products that meet various safety standards and the highest level of quality control.

Total support

We strive to resolve customer issues through an integrated system where we provide support for everything from inquiries to follow-up.

Refer to this page for inquiries.

Domestic and overseas networks
supporting stable supply

Domestic network

The FUJILOK U-NUTs we ship at our customers' requests are gathered at our Hiroshima Product Center. Similarly, we gather the FINE U-NUTs at Toyama Seimitsu. Our the FUJILOK U-NUT and the FINE U-NUT products can be managed at each site. In addition, each site has a systemized inventory set up based on up-to-date data, and we always keep ready-made products in stock to achieve an instant-delivery system. In addition, all comments received from our customers are collected at our head office, and we take future countermeasures as soon as possible. As for maintenance and after-sales service, these functions are arranged at our head office where customer comments are collected, allowing us to respond quickly and appropriately.

Refer to the site information page for details.

Overseas network

Locknuts are widely sold in Asia, Europe, the United States, and other overseas areas, allowing us to develop products and take safety measures that leverage the opinions of local people. In recent years, there has been an increasing need for safety in Southeast Asia, and we're responding to this need and achieving growth at our bases in Indonesia and Taiwan. As a global company, we will continue to aggressively expand overseas.

Refer to this site for information
on our affiliated companies.