株式会社冨士精密 List of Products and Services

The "Flange U-NUT" is a locking nut that reduces the process of fitting washers, thereby improving work efficiency. This product helps reduce management supplies. Additionally, the seating surface is stable, and fastening performance is enhanced. The integrated design with the flange improves aesthetics. 【Features】 ■ Increases work efficiency ■ Reduces management supplies ■ Stable seating surface ■ Enhanced fastening performance ■ Integrated design with flange *For more details, please refer to the PDF document or feel free to contact us.

The "Flange U-NUT (Stainless Steel)" is a locking nut that reduces the process of fitting washers, thereby improving work efficiency. The seating surface is stable, enhancing fastening performance. Additionally, it allows for a reduction in management supplies. Furthermore, the integrated design with the flange improves aesthetics. 【Features】 ■ Reduces the process of fitting washers ■ Enhances work efficiency ■ Allows for a reduction in management supplies ■ Stable seating surface ■ Improved fastening performance *For more details, please refer to the PDF document or feel free to contact us.

The "Cap U-Nut" is a locking nut that covers the tip of the bolt with a cap, enhancing its appearance. It improves safety during contact with the bolt and protects the contacted objects, addressing PL law measures. 【Features】 ■ Covers the tip of the bolt with a cap ■ Enhances appearance ■ Improves safety during contact with the bolt ■ Protects contacted objects ■ Addresses PL law measures *For more details, please refer to the PDF document or feel free to contact us.

The "Washer-attached U-NUT" is a locking nut that accommodates loose holes and blind holes due to its large washer diameter. In response to requests from various sources, we have integrated a large washer into the hexagonal shape of the U-NUT. Since the nut, spring washer, and washer are all integrated, it reduces labor, improves work efficiency, and minimizes the risk of forgetting to install parts as well as the hassle of inventory management. 【Features】 〇 Galvanized (SS400) ○ Stainless steel (SUS304) ○ No need for spring washers or flat washers ○ Usable with anchor bolts ○ Thread pitch is standard For more details, please contact us or download the catalog.

The "CLIP U-NUT" is a specialized U-NUT designed to facilitate work in locations that are difficult to access or unreachable, such as the installation of soundproof walls on highways. By simply drilling a hole in the component, there is no need for nut welding or screw tapping. Additionally, the guide ring function makes positioning easy. The one-sided fastening method reduces the number of workers required and achieves a total cost reduction. 【Features】 ■ The clip fittings are compatible with the function of square washers. ■ Contributes to the simplification of work. ■ Reduces the number of parts. ■ Shortens construction time. *For more details, please refer to the PDF document or feel free to contact us.

"BLU-NUT" is a research and development product that incorporates the functionality of a U-NUT into a blind nut. Based on feedback from everyone, we have integrated Fujiseimitsu Co., Ltd.'s U-NUT technology into the blind nut. We believe that this "BLU-NUT" will lead to further improvements in our customers' work efficiency and cost management. 【Features】 - Reduces the time and effort required for complicated pre-process tasks - Simple operation that can be tightened with a riveter or nut driver - Contributes to total cost reduction - Reduces the number of parts, making management easier - Equipped with measures to prevent nut rotation and bolt seizure For more details, please contact us or download the catalog.

"SU-NUT" is a safety and security lock nut adopted in outdoor facilities such as mega-solar power plants. Recently, we have received inquiries to protect equipment from theft and natural disasters at important facilities around the world, including mega-solar power plants being built across the country. The "SU-NUT" features a unique design that enhances visual security deterrence while being impossible to remove with commercially available sockets or wrenches; a dedicated socket is required. The management of the dedicated sockets is handled by Fuji Precision Co., Ltd., and we lend them out for free after signing a "memorandum" with our customers. 【Features】 - Protects your valuable assets - Equivalent functionality and quality to U-NUT - Simply replace the nuts you are currently using - Easy to use, requiring only a special socket as a tool For more details, please contact us or download the catalog.

The "GU-NUT" is a locking nut that adopts a large 270° friction ring to meet the loosening prevention performance specified in JIS B1056, utilizing the friction ring of the "U-NUT." We have enhanced the loosening prevention performance, pursuing further safety and peace of mind. It complies with JIS B1056 "Pre-Loading Torque Type Steel Hex Nut." 【Features】 ■ Complies with JIS B1056 "Pre-Loading Torque Type Steel Hex Nut" ■ The shape of the friction ring has been expanded to 270°, improving performance ■ As a high torque type, the loosening prevention function is further enhanced ■ Prevents early detachment even if axial force decreases *For more details, please refer to the PDF document or feel free to contact us.

The "Small U-NUT" is a nut with a width across the flats that is one rank smaller than a standard nut for the same nominal diameter. This product allows for weight reduction of the nut. Additionally, it helps to minimize the working space. Furthermore, it enables the use of shared tools, contributing to increased work efficiency. 【Features】 ■ Width across the flats is one rank smaller than a standard nut for the same nominal diameter ■ Weight reduction of the nut ■ Minimization of working space ■ Shared tools can be used ■ Increased work efficiency *For more details, please refer to the PDF materials or feel free to contact us.

The "Weld U-NUT" is a projection-type nut. It is fastened by screwing in a bolt. There are examples of its use in automotive armrests, automotive seat frames, and motorcycle center stands. 【Specifications (excerpt)】 ■ Nominal diameter (d): M5 ■ Pitch (p): 0.8 ■ Width across flats (s): Standard dimension/9, Tolerance/0-0.36 ■ Overall height (h): Standard dimension/3.0, Tolerance/±0.3 ■ Thread height (m): Approximately 2.3 ■ Weight (g): Approximately 1.2 *For more details, please refer to the PDF document or feel free to contact us.

The "Unify U-NUT" is a locking nut with a thread angle of 60°. It complies with the standards of the United States, the United Kingdom, and Canada, which are used in aviation and the automotive industry. Additionally, we also offer the "Wit U-NUT," which complies with the old British standards commonly used in construction and plumbing. 【Features】 ■ Thread angle is 60° ■ Complies with the standards of the United States, the United Kingdom, and Canada *For more details, please refer to the PDF document or feel free to contact us.

The "Wit U-NUT" is a lock nut with a thread angle of 55°. It complies with the old British standards commonly used in construction and plumbing. Additionally, we also offer the "Unify U-NUT," which meets the standards of the United States, the United Kingdom, and Canada. [Features] ■ Thread angle is 55° ■ Complies with the old British standards commonly used in construction and plumbing *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, is the definitive locking nut that continues to evolve not only in terms of its locking performance but also in durability and vibration resistance. Here are some examples of where the locking nut U-NUT has been implemented. Adoption Location: Handrails inside tunnels (mounting hardware for handrails, cable racks, lighting, etc.) Adopted Product: HEX U-Nut (stainless steel, hot-dip galvanized) Reason for Adoption: Locking function and proven track record On-site construction, safety management, and fall prevention measures Other Features: Performance results of the locking function can be verified in accordance with NEXCO construction management guidelines.

The U-NUT, synonymous with locking nuts, continues to evolve not only in its anti-loosening performance but also in durability and vibration resistance. Here are some examples of where the U-NUT locking nut has been implemented. 【Case Overview】 ■ Adoption Location - Shin-Meishin Soundproof Panels (Support Installation Anchors and Soundproof Panel Mounting Hardware) ■ Adopted Products - Clip U-Nut (Stainless Steel) / HEX U-Nut (Stainless Steel, Hot-Dip Galvanized) ■ Reasons for Adoption - Anti-loosening function, proven track record, on-site construction management/safety management, and fall prevention measures ■ Other Features - Performance results of the anti-loosening function can be verified according to NEXCO construction management guidelines. *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in its locking performance but also in terms of durability and vibration resistance. Here are some examples of the U-NUT locking nut being implemented. 【Case Overview】 ■ Adoption Location - Tokyo Skytree (Curtain Wall) ■ Adopted Product - HEX U-Nut (Stainless Steel) ■ Reasons for Adoption - Locking function, simplification of on-site construction, reduction of component count ■ Other Features - Can be fastened in limited spaces *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in terms of its locking performance but also in durability and vibration resistance. Here are some examples of where the locking nut U-NUT has been implemented. 【Case Overview】 ■ Adoption Location - Exterior panels of high-rise buildings (panel mounting hardware) ■ Adopted Product - HEX U-Nut (stainless steel) ■ Reasons for Adoption - Locking effect, fall prevention measures, and more ■ Other Features - Special construction method to accommodate panel expansion and contraction *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in terms of its locking performance but also in durability and vibration resistance. Here are some examples of the U-NUT locking nut being implemented. 【Case Overview】 ■ Adoption Location - Solar power generation panels (panel mounting brackets, anchor bolts) ■ Adopted Products - SU-Nut (stainless steel) / HEX U-Nut (hot-dip galvanized) ■ Reasons for Adoption - Locking function and prevention of tampering and theft ■ Other Features - Special design with rental of dedicated sockets *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in terms of its locking performance but also in durability and vibration resistance. Here are some examples of the U-NUT locking nut being implemented. 【Case Overview】 ■ Adoption Location - Bridge anti-collapse device (anchor bolts) ■ Adopted Product - HEX U-Nut (hot-dip galvanized) ■ Reason for Adoption - Locking function and measures to prevent detachment ■ Other Features - Reduction of component count and simplification of construction were required for post-installation. *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in terms of its locking performance but also in durability and vibration resistance. Here are some examples of the U-NUT locking nut being implemented. 【Case Overview】 ■ Adoption Location - Playground slide (handrail and staircase attachment points) ■ Adopted Product - Cap-equipped U-NUT (stainless steel) ■ Reason for Adoption - Locking function, fall prevention effect, and improved safety during contact ■ Other Features - Enhanced aesthetics with cap-equipped U-NUT *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in its locking performance but also in terms of durability and vibration resistance. Here are some examples of the U-NUT locking nut being implemented. 【Case Overview】 ■ Adoption Location - Hydraulic Excavator (Caterpillar) ■ Adopted Product - HEX U-Nut (S45C) ■ Reason for Adoption - Locking function ■ Other Features - High strength and excellent availability *For more details, please refer to the PDF document or feel free to contact us.

The U-NUT, synonymous with locking nuts, continues to evolve not only in its locking performance but also in terms of durability and vibration resistance. Here are some examples of where the locking nut U-NUT has been implemented. 【Case Overview】 ■ Adoption Location - Naruto Bridge (cable rack) ■ Adopted Product - HEX U-Nut (stainless steel, hot-dip galvanized) ■ Reasons for Adoption - Locking function, drop prevention effect, simplification of on-site work ■ Other Features - Material with high corrosion resistance and required surface treatment *For more details, please refer to the PDF document or feel free to contact us.

"U-NUT" is a locking nut that is active in various industries, from steel structures such as railways and bridges to cars, motorcycles, and industrial machinery. No matter how harsh the usage environment, this product, which demands safety and reliability, continues to evolve not only in its locking performance but also in durability and vibration resistance. 【Features】 ■ Fastening Function: Provides stable locking performance ■ Drop Prevention: Prevents early drop even if axial force decreases ■ Reusability: Can be reused ■ Easy Fastening: No need for skilled techniques or special tools ■ Standalone Component: Simplifies parts management and prevents installation errors ■ Heat and Cold Resistance: All-metal product with excellent heat and cold resistance *NETIS Registration No. KT-130064-VE New Technology Name "U-Nut" 【Customer Feedback】 By using U-NUT for securing shackles, we were able to eliminate the need for the conventional process of crushing screw threads, confirming an improvement in fastening work efficiency. This led to a reduction in construction days and maintenance costs. *For more details about "U-NUT," please download the PDF or feel free to contact us.

"U-NUT" is a locking nut that excels in various industries, from railway and bridge steel structures to cars, motorcycles, and industrial machinery. No matter how harsh the usage environment, this product demands safety and reliability, continuously evolving not only in its locking performance but also in durability and vibration resistance. 【Features】 ■ Fastening Function: Provides stable locking performance ■ Drop Prevention: Prevents early drop even when axial force decreases ■ Reusability: Can be reused ■ Easy Fastening: No need for skilled techniques or special tools ■ Standalone Component: Facilitates parts management and prevents installation errors ■ Heat and Cold Resistance: Fully metallic product with excellent heat and cold resistance * NETIS Registration No. KT-130064-VE (Old Registration) New Technology Name: U-Nut * For more details, please refer to the PDF document or feel free to contact us.

The "U-NUT" is used in various disaster prevention and disaster response products that are subjected to wind and water pressure, such as seismic reinforcement work for bridges, temporary road installation work, seismic devices and lightning rods for buildings, emergency generators, fire extinguishers, shutters, vibration parts of fire doors, parabolic antennas, mounting brackets for solar panels, stop wires for tetrapods, and installation brackets for marine buoys (markers). No matter how harsh the usage environment, the "U-NUT" is required to provide safety and peace of mind. It excels not only in anti-loosening performance but also in preventing detachment and reusability, making it active in various industries. 【Features】 ■ Fastening Function: Exhibits stable anti-loosening performance ■ Detachment Prevention: Prevents early detachment even if axial force decreases ■ Reusability: Can be reused ■ Easy Fastening: No need for skilled techniques or specialized tools ■ Individual Parts: Facilitates parts management and prevents installation errors ■ Heat and Cold Resistance: All-metal products conform to the inherent heat resistance temperature of the material *For more details, please refer to the PDF document or feel free to contact us.

"Is that sign or billboard wobbling?" The 'U-NUT' is a locking nut designed to prevent loosening, particularly in high places where advertising signs, markers, hanging banners, bird deterrents, safety measures for windows and balcony railings, carports, grates, and other facilities are installed, making it useful for various applications in commercial facilities and buildings. No matter how harsh the usage environment, this product demands safety and reliability, continuously evolving not only in its loosening prevention performance but also in durability and vibration resistance. **Features** - **Fastening Function:** Provides stable loosening prevention. - **Drop Prevention:** Prevents early detachment even if axial force decreases. - **Reusability:** Can be reused. - **Easy Fastening:** No skilled techniques or special tools required. - **Individual Components:** Simplifies parts management and prevents installation errors. - **Heat and Cold Resistance:** All-metal product adheres to the inherent heat resistance of the material. *NETIS Registration No. KT-130064-VE New Technology Name U-Nut [Individual loosening prevention nut for fastening auxiliary facilities]* *For more details, please refer to the PDF document or feel free to contact us.*

"U-NUT" and "FINE U-NUT" are adopted in various medical devices such as wheelchairs and digital panorama X-ray imaging equipment. "U-NUT" is a locking nut that is active in various industries ranging from cars, motorcycles, and industrial machinery to steel structures like railways and bridges. "FINE U-NUT" is a locking nut specifically for bearings used in rotating shafts of industrial machinery such as ball screws and spindles. We offer a rich lineup including the reliable locking nut "U-NUT" that ensures secure fastening, and the bearing locking nut "FINE U-NUT" that eliminates the need for traditional keyway machining of shafts and the installation of toothed washers. We also have the precision lock nut "TWIN FU-NUT," which further enhances the locking performance of FINE U-NUT with two friction rings. We also accept orders for custom shapes. 【Product Lineup】 ■U-NUT ■FINE U-NUT ■TWIN FU-NUT *For more details, please refer to the PDF materials or feel free to contact us. *3D CAD data is also available for download.

The "U-NUT" is a locking nut that is active in various industries, from tunnels on roads and railways to steel structures such as high-rise buildings and bridges, as well as in four-wheeled and two-wheeled vehicles and industrial machinery. No matter how harsh the usage environment, this product demands safety and reliability. It continues to evolve not only in terms of locking performance but also in durability and vibration resistance. 【Features】 ■ Fastening Function: Provides stable locking performance ■ Drop Prevention: Prevents early drop even if axial force decreases ■ Reusability: Can be reused ■ Easy Fastening: No need for skilled techniques or specialized tools ■ Standalone Parts: Simplifies parts management and prevents installation errors ■ Heat and Cold Resistance: Fully metallic product with excellent heat and cold resistance 【Customer Feedback】 By using the U-NUT for securing shackles, we were able to eliminate the need for the traditional process of crushing screw threads, confirming an improvement in fastening work efficiency. This led to a reduction in construction days and a decrease in maintenance costs. *For more details about the "U-NUT," please download the PDF or feel free to contact us.

The "U-NUT" is a locking nut that is active in various industries, including motorcycles, four-wheel vehicles, industrial machinery, as well as construction, railways, and steel structures. The "FINE U-NUT" is a locking nut for bearings that is used primarily around rotating shafts in machine tools and industrial machinery, such as ball screws and spindles. Additionally, the "TWIN FU-NUT" is adopted in precision lock nuts for machine tools that require high thread accuracy and in cases where further measures against loosening are necessary. We offer a rich lineup, including the locking nut "U-NUT" that ensures reliable fastening, the bearing locking nut "FINE U-NUT" that eliminates the need for traditional keyway machining and tooth washer installation for shafts, and the precision lock nut "TWIN FU-NUT," which further enhances the loosening prevention performance of the FINE U-NUT with two friction rings. We can also manufacture special shapes in consultation with our customers. *For more details, please refer to the PDF materials or feel free to contact us. *3D CAD data is also available for download.