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?" 'U-NUT' is a loosening prevention nut that is installed in high places where loosening is likely to occur due to wind, and is used for various purposes in commercial facilities and buildings, such as advertising billboards, signs, hanging banners, bird damage prevention products, safety measures for window and balcony railings, carports, grates, and other equipment to prevent vandalism. No matter how harsh the usage environment, this product demands safety and reliability, continuously evolving not only in loosening prevention performance but also in durability and vibration resistance. 【Features】 ■ Fastening Function: Provides stable loosening prevention ■ Drop Prevention: Prevents early drop even when axial force decreases ■ Reusability: Can be reused ■ Easy Fastening: No need for skilled techniques or specialized tools ■ Standalone Parts: Facilitates parts management and prevents installation errors ■ Heat and Cold Resistance: All-metal product conforms to the inherent heat resistance temperature of the material *NETIS Registration No. KT-130064-VE New Technology Name U-Nut 【Standalone 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 the bolt in until the friction ring makes contact with the tip of the threaded section. *Note: Screwing in from the side of the friction ring is not possible. 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 no longer in contact with the bolt's threads. Once the friction ring is detached from 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】 ■Signs ■Billboards ■Hanging Banners ■Soundproof Walls ■Curtain Walls ■Handrails ■Gratings ■Temporary Scaffolding ■Bird Damage Prevention Products, etc. *For more details, please refer to the PDF document or feel free to contact us.
catalog（1）
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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 cushion with SUS (stainless steel) | sldprt data |
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| Seat cushion with attachment_SS | IGS data |
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| Seat cushion with payment_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 solely 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 to loosen. 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. Though small parts, bolts and nuts play a crucial role in connecting functions and technologies. They can be seen as a cross-point technology that combines cutting-edge technologies and opens up new technological fields. Fuji Precision has taken this theme as an eternal proposition, working on product development that anticipates the needs of the times while pursuing high quality and added value in our products. Our goal for the future is to become the world's number one comprehensive manufacturer of locking nuts. We will continue to strive for product development that meets your trust and contributes to the industrial sector and society through even greater efforts.