Contributing to fall prevention and safety measures! We provide safety and peace of mind, no matter how harsh the usage environment is.
"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.*
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basic information
<Installation Procedure> 1. Pass the bolt through the fastening component. Ensure that the bolt has a thread accuracy of 6g (Grade 2) and that the tip of the threaded section has been chamfered. 2. Manually screw in the bolt until the friction ring makes contact with the tip of the threaded section. *Note: It is not possible to screw in from the side of the friction ring. 3. Tighten using a wrench or other fastening tool. 4. Confirm that the threaded section of the bolt extends more than two pitches from the friction ring. When removing, use a wrench or similar tool to unscrew until the friction ring is free from the bolt's threads. Once the friction ring is no longer in contact with the bolt's threads, you can unscrew it by hand. *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Delivery Examples】 ■Signage ■Signboards ■Hanging Banners ■Sound Barriers ■Curtain Walls ■Handrails ■Gratings ■Temporary Scaffolding ■Bird Damage Prevention Products, etc. *For more details, please refer to the PDF materials or feel free to contact us.
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CAD data（64）
| Model number | overview | File |
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| Small U_SUS | IGS data |
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| Small U_SUS | sldprt data |
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| Small U_SS | IGS data |
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| Small U_SS | sldprt data |
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| Small U_SC | IGS data |
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| Small U_SC | sldprt data |
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| Seat with metal base_SUS | IGS data |
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| Seat with metal base_SUS | sldprt data |
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| Seat cushion with payment_SS | IGS data |
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| Seat cushion with attachment_SS | sldprt data |
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| UNC_SUS | IGS data |
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| UNC_SUS | sldprt data |
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| UNC_SS | IGS data |
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| UNC_SS | sldprt data |
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| UNC_SC | IGS data |
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| UNC_SC | sldprt data |
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| FLANGE_SUS | IGS data |
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| FLANGE_SUS | sldprt data |
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| FLANGE_SS | IGS data |
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| FLANGE_SS | sldprt data |
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| FLANGE_SC | IGS data |
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| FLANGE_SC | sldprt data |
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| CAP_SUS | IGS data |
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| CAP_SUS | sldprt data |
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| CAP_SS | IGS data |
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| CAP_SS | sldprt data |
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| WELD_SS | IGS data |
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| WELD_SS | sldprt data |
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| WU_SUS | IGS data |
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| WU_SUS | sldprt data |
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| WU_SS | IGS data |
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| WU_SS | sldprt data |
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| WU_SC | IGS data |
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| WU_SC | sldprt data |
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| U_3 types_SUS | IGS data |
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| U_3 types_SUS | sldprt data |
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| U_3 types_SS | IGS data |
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| U_3 types_SS | sldprt data |
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| U_3 types_SC | IGS data |
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| U_3 types_SC | sldprt data |
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| U_SUS | sldprt data |
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| U_SUS | IGS data |
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| U_SS | sldprt data |
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| U_SS | IGS data |
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| U_SC | sldprt data |
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| U_SC | IGS data |
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| CU_SUS | sldprt data |
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| CU_SUS | IGS data |
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| CU_SS_Molten Zinc Coating | sldprt data |
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| CU_SS_Molten Zinc Coating | IGS data |
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| TFU_SC | IGS data |
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| TFU_SC | sldprt data |
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| SU_SUS | sldprt data |
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| SU_SUS | IGS data |
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| GU_SS | sldprt data |
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| GU_SS | IGS data |
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| BLU_SUS | sldprt data |
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| BLU_SUS | IGS data |
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| FUN_SUS | sldpr data |
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| FUN_SS | sldpr data |
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| FUN_SC | sldpr data |
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| FUN_SUS | IGS data |
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| FUN_SS | IGS data |
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| FUN_SC | IGS data |
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Company information
Since our establishment in 1962, Fuji Precision has focused exclusively on the research and development of locking nuts, growing into a comprehensive manufacturer of locking nuts. The 'U-Nut' brand was the first in the industry to introduce the "metal ring locking function" to bolts and nuts, which were traditionally considered prone to loosening. This groundbreaking product received a significant response upon its release and has now grown to capture a 50% share of the domestic market, becoming synonymous with locking nuts. Although bolts and nuts may be considered small parts, they play a crucial role in connecting functions and technologies. They can be described as cross-point technology that combines cutting-edge technologies and opens up new technological fields. Fuji Precision regards this theme as an eternal proposition and has been committed to product development that anticipates the needs of the times, while pursuing high quality and high added value in our products. Our future goal is to become the world's number one comprehensive manufacturer of locking nuts. We will continue to strive to create products that meet your trust and contribute to the industrial sector and society.