Locking Nut Product List and Ranking from 10 Manufacturers, Suppliers and Companies

Last Updated：Oct 22, 2025 Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Locking Nut Manufacturer, Suppliers and Company Rankings

Last Updated：Oct 22, 2025 Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

株式会社冨士精密 Osaka//Machine elements and parts
ハードロック工業 Osaka//Manufacturing and processing contract
紀州ファスナー Osaka//Other manufacturing
4 大阪フォーミング Osaka//Machine elements and parts
5 日本プララド Hyogo//Industrial Machinery

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Locking Nut Product ranking

Last Updated：Oct 22, 2025 Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Single unit locking nuts "U-NUT" "FINE U-NUT" 株式会社冨士精密
Locking nut "FINE U-NUT" 株式会社冨士精密
Locking nut "GU-NUT" compliant with JIS standards. 株式会社冨士精密
4 Bearing Lock Nut "FINE U-NUT" 株式会社冨士精密
5 『U-NUT』『FINE U-NUT』『TWIN FU-NUT』株式会社冨士精密

Locking Nut Product List

61～75 item / All 82 items

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Locking nut with washer U-NUT

Loosening prevention feature + disc spring + loosening prevention nut that improves work efficiency.

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.

Company：株式会社冨士精密
Price：Other

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Locking nut "FINE U-NUT"

Locking nut with over 40 years of proven performance for bearings.

The "FINE U-NUT" is a locking nut for bearings that eliminates the need for traditional keyway machining of shafts and the installation of toothed washers. It allows for arbitrary and appropriate positioning, and torque management is also easy. It generates "power" in various industrial machines and improves the rotational balance of bearings. Additionally, it has achieved a reduction in rotational loss of equipment and a decrease in power consumption. 【Features】 ■ Reusability: Can be reused ■ Easy fastening: No skilled techniques required ■ Labor-saving simplification: No keyway machining of shafts needed ■ Balance: Improved rotational balance of shafts and bearings ■ Lightweight: Can use thinner hollow shafts than before ■ Cost reduction: No need for traditional machining, parts, or techniques *For more details, please refer to the PDF document or feel free to contact us. *CAD data is also available for download.

Company：株式会社冨士精密
Price：Other

Metal bearings

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Locking nut "Cap type U-NUT"

There are delivery examples for fall prevention devices, commercial fully automatic washing machines, curtain walls, and more!

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.

Company：株式会社冨士精密
Price：Other

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Flanged U-Nut (Stainless Steel) with Locking Feature

Excellent corrosion resistance! The seat surface is stable, and fastening performance is improved.

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.

Company：株式会社冨士精密
Price：Other

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Locking nut "Unify U-NUT"

Aircraft, compatible with American, British, and Canadian standards adopted in the automotive industry!

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.

Company：株式会社冨士精密
Price：Other

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Fine U-Nut Delivery Case: Processing Machine

Keyway machining for shafts, washers, and no need for installation technology! Examples of delivered locking nuts!

The "Fine U-Nut" allows for arbitrary and precise positioning, making torque management easy. Furthermore, it is a revolutionary locking nut for bearings that eliminates the need for keyway machining on shafts, washers, and installation techniques. It improves the rotational balance of bearings that generate power in various machinery industries. This product is also used in processing machines, with examples of it being supplied as parts for cold press machines, food machinery, food processing machines, and presses. 【Features】 ■ Arbitrary and precise positioning is possible ■ Easy torque management ■ Improves the rotational balance of bearings * For more details, please refer to the PDF materials or feel free to contact us. * CAD data is also available for download.

Company：株式会社冨士精密
Price：Other

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Fine U-Nut Delivery Case: Machinery and Equipment

Keyway machining for shafts, washers, and no installation technology required! Case study of lock nuts delivery!

The "Fine U-Nut" allows for arbitrary and precise positioning, making torque management easy. Furthermore, it is a revolutionary locking nut for bearings that eliminates the need for keyway machining on shafts, washers, and installation techniques. It improves the rotational balance of bearings that generate power in various machinery industries. This product is also used in machinery and equipment, with examples of being supplied as parts for pumps, digital panoramic X-ray imaging devices, and spindles. 【Features】 ■ Arbitrary and precise positioning is possible ■ Easy torque management ■ Improves the rotational balance of bearings * For more details, please refer to the PDF materials or feel free to contact us. * CAD data is also available for download.

Company：株式会社冨士精密
Price：Other

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Bearing Lock Nut "Fine U-Nut"

No need for keyway machining on the shaft or installation technology for toothed washers! Locking nut for bearings!

The "Fine U-Nut" allows for arbitrary and appropriate positioning and makes torque management easy. Furthermore, it is a revolutionary locking nut for bearings that eliminates the need for keyway machining on shafts and washer mounting technology. It improves the rotational balance of bearings that generate power in various machinery industries. This product has been adopted by numerous machine tools and has a proven track record as a component for drill machines for shaped steel and NC rotary tables. 【Features】 ■ No need for keyway machining on shafts ■ No need for washer mounting technology ■ Reusable ■ Arbitrary and appropriate positioning possible ■ Easy torque management ■ Improves the rotational balance of bearings ■ Enables total cost reduction *For more details, please refer to the PDF document or feel free to contact us. *CAD data is also available for download.

Company：株式会社冨士精密
Price：Other

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Adoption of 'HEX U-Nut' for handrails inside the tunnel.

U-NUT (stainless steel, hot-dip galvanized) is used for mounting brackets for cable racks and lighting in tunnels.

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.

Company：株式会社冨士精密
Price：Other

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Adoption of 'HEX U-Nut' for high-rise building exterior panels.

U-NUT (stainless steel) is used as a mounting fixture for exterior panels of high-rise buildings.

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.

Company：株式会社冨士精密
Price：Other

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Adopted for solar power generation panels: "SU Nut/HEX U Nut"

U-NUTs coated with stainless steel and hot-dip galvanized zinc are used for mounting brackets and anchor bolts of solar power generation panels.

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.

Company：株式会社冨士精密
Price：Other

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Adopted for bridge collapse prevention device: "HEX U-Nut"

The U-NUT coated with molten zinc is used for the anchor bolts of the bridge anti-fall prevention device.

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.

Company：株式会社冨士精密
Price：Other

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Cap-equipped U-NUT adopted for playground slide

The U-NUT with a cap is used for the installation of handrails and stairs on playground slides.

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.

Company：株式会社冨士精密
Price：Other

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HEX U-Nut adopted for the Naruto Bridge

U-NUT (stainless steel, hot-dip galvanized) is used in the cable rack of the Naruto Bridge.

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.

Company：株式会社冨士精密
Price：Other

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Locking nut "U-NUT"

Since its birth over 60 years ago, the U-NUT, known for its reliability and track record, continues to evolve in terms of anti-loosening performance, durability, and vibration resistance.

"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.