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Locking Nut Product List and Ranking from 8 Manufacturers, Suppliers and Companies

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

  1. 株式会社冨士精密 Osaka//Machine elements and parts
  2. ハードロック工業 Osaka//Manufacturing and processing contract
  3. 紀州ファスナー Osaka//Other manufacturing
  4. 4 大阪フォーミング Osaka//Machine elements and parts
  5. 5 東京衡機エンジニアリング Tokyo//Building materials, supplies and fixtures
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Locking Nut Product ranking

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

  1. Locking nut "FINE U-NUT" 株式会社冨士精密
  2. Locking nut "GU-NUT" compliant with JIS standards. 株式会社冨士精密
  3. 『U-NUT』『FINE U-NUT』『TWIN FU-NUT』 株式会社冨士精密
  4. 4 [Technical Information] How to detect looseness? (Junker Test) ハードロック工業
  5. 4 Locking nut with washer U-NUT 株式会社冨士精密

Locking Nut Product List

31～45 item / All 73 items

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Adoption of 'HEX U-Nut' in hydraulic excavators

Adoption of 'HEX U-Nut' in hydraulic excavators

U-NUT treated with S45C is used in the caterpillar of hydraulic excavators.

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.

  • U-NUT S45C.jpg
  • nut

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『U-NUT』『FINE U-NUT』『TWIN FU-NUT』

『U-NUT』『FINE U-NUT』『TWIN FU-NUT』

Safety and security lock nuts "U-NUT" and "FINE U-NUT" are available in a variety of sizes and shapes.

"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.

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  • 液晶ディスプレイ据付金具.jpg
  • デジタルパノラマX線撮影装置.jpg
  • 小型成型品取出し用ロボット.jpg
  • スピンドル.jpg
  • nut

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Locking nut "V Nut" [Can be used directly on the bolt in use]

Locking nut "V Nut" [Can be used directly on the bolt in use]

A locking nut that can be used directly on the bolt in use! Usable even after being removed multiple times!

The locking nut "V Nut" consists of two components: the nut itself and a special spring. A groove is machined into the top surface of the nut to fit the special spring (friction ring), and the protruding part is wound inward toward the center, fixing the friction ring to the top of the nut. 【Features】 ■ Can be used directly with currently used bolts ■ Does not fall off even when the bolt and nut are in an intermediate position due to the action of the friction ring ■ Generates pre-tension torque after removal, suppressing "rotational loosening" ■ Higher safety and workability compared to standard nuts ■ Excellent heat and cold resistance, with no concerns about functional degradation *For more details, please request documentation or view the PDF data available for download.

  • nut
  • fastener

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Locking K nut

Locking K nut

The friction ring demonstrates a loosening prevention function! For safety measures and vibration countermeasures.

This product is a nut with a locking feature. The locking function is activated by a friction ring (leaf spring) attached to the top of the nut. It complies with tests based on NAS3350 and 3354. 【Features】 ■ Prevents loosening by strongly pressing the threads with the friction ring ■ No special tools required as it has the same handling as commercially available hex nuts ■ Complies with tests based on NAS3350 and 3354 ■ Stainless products are treated with a fluorine coating to prevent seizing *For more details, please refer to the PDF document or feel free to contact us.

  • nut

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Locking nut "Smart Hyper Road Nut"

Locking nut "Smart Hyper Road Nut"

A high-performance locking nut with a built-in spring, confirmed to have no loosening or detachment in a looseness test compliant with NAS3350, with an upper limit of 30,000 cycles.

The "Smart Hyper Load Nut" is a nut that significantly contributes to reducing installation costs. It has been proven to have anti-loosening performance through tests conducted using an impact-type vibration testing machine compliant with the NAS3350 standard. It can be installed and removed using the same method as a standard nut. 【Features】 ■ A high-function anti-loosening nut with a built-in spring ■ Can be used with the exact same method as a standard nut for tightening ■ Designed for removal with general-purpose tools ■ Utilizes the characteristics of the integrated spring to prevent loosening and detachment of the nut ■ Maintains anti-loosening effectiveness even after repeated use *For more details, please request materials or view the PDF data available for download. <We will send you a free sample set> If you would like a sample, please request it through the "Contact Us" section below. 　Contents of the free sample set　 　・Smart Hyper Load Nut (SUS304) M12 x 1 piece 　・T-Spring (SUS304) M12 x 1 piece 　・Smart Insert Nut (SUS304) M12 x 1 piece *If you have other requests, please provide details through the "Contact Us" section.

  • nut
  • Other machine elements

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Locking nut, fixed to the base steel material "Smart Insert Nut"

Locking nut, fixed to the base steel material "Smart Insert Nut"

Aren't you using nuts welded to the base steel material? Secure the locking nuts without welding! Solve the problems of nut installation on the base steel material all at once!

Fixed to the base steel material without welding through external screw processing! There is a way to completely solve the problems of welding nuts! Are you using nuts welded to the base steel material? Are you facing issues when attaching nuts through welding? Problems with nut welding: - Distortion occurs - Variability in quality with each weld - Deformation happens - A single failure at one point ruins the entire steel material - Requires time-consuming protection measures And more. To break this situation, we developed the 'Smart Insert Nut.' This is a spring-integrated anti-loosening nut, improved from the 'Smart Hyper Load Nut,' which is well-known for its effectiveness in preventing loosening due to vibrations. By processing external threads on the outside of the nut, it can now be fixed to the base steel material simply by tapping, eliminating the need for welding. Not only does it solve the welding problem, but it also addresses the issue of nut loosening!! ■ No welding required! ■ No rust prevention treatment needed! ■ Improved work efficiency! ■ No worries about thermal deformation! ■ Ensured accuracy of nut positioning! ■ No concerns about bolt loosening! ◆◆◆ We will send you a free sample set ◆◆◆

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FLEXLOC Locking Nut

FLEXLOC Locking Nut

Due to the high strength of the nut, it can be used with bolts of strength grades 8.8, 10.9, and 12.9.

By filling the gap between the male and female threads over 360 degrees, the prevention of loosening is ensured against any vibrations.

  • nut
  • fastener

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Data Area Calculation Database

Data Area Calculation Database

This is an introduction to plane formulas and area formulas (volume of solids and various numerical values).

In the area of area calculation databases, we introduce plane formulas and area calculation formulas (volumes of solids and various numerical values). Osaka Forming Co., Ltd. is a manufacturer that leverages 40 years of experience and advanced production technology, specializing in processing difficult materials such as stainless steel, as well as titanium and others, in addition to iron and aluminum. To ensure we can respond meticulously to customer orders, we maintain a rich inventory of products in various sizes and can accommodate orders from small lots to large lots. As a united team, we strive to meet our customers' expectations and will continue to provide high-quality products.

  • others
  • Database

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Database of Mechanical Properties of Material Cross-Sections

Database of Mechanical Properties of Material Cross-Sections

This is an introduction to the mechanical properties of cross-sections in quadrilaterals, triangles, polygons, and circles.

The database of mechanical properties of cross-sections introduces the mechanical properties of cross-sections in rectangular, triangular, polygonal, and circular shapes. Osaka Forming Co., Ltd. is a manufacturer that leverages 40 years of experience and advanced production technology, specializing in processing difficult materials such as stainless steel, as well as titanium and others, in addition to iron and aluminum. To ensure we can respond meticulously to customer orders, we maintain a rich inventory of products in various sizes and can accommodate orders from small to large lots. As a united team, we strive to meet our customers' expectations and will continue to provide high-quality products.

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  • Database

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E-LOCK Series Bearing Stop Nut Type

E-LOCK Series Bearing Stop Nut Type

Friction rings prevent loosening! Easy-to-install nut-type bearing stops.

The E-LOCK series bearing stop nut type is a bearing stop that can be installed directly without the need for washers or keyway machining. The friction ring incorporated into the top surface of the nut contacts the threads of the bolt, applying strong pressure through spring action stress and reaction force, preventing loosening and free rotation. Torque management is easy, and installation is simple. A wide range of sizes is available! **Features** - No keyway machining required for the shaft - Reduction of machining costs possible - No need for a washer, reducing bending mistakes - Exhibits anti-loosening effects against vibrations - NETIS registration number: KK-180059-A *For more details, please refer to the catalog. Feel free to contact us with any inquiries.*

  • Metal bearings

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Locking Nut E-LOCK Comprehensive Catalog *Technical Book / Case Studies Collection

Locking Nut E-LOCK Comprehensive Catalog *Technical Book / Case Studies Collection

【NETIS New Registration!】Not only does it provide anti-loosening performance, but it also offers high durability and peace of mind and trust in various vibration scenarios. *We will be exhibiting at the Automotive Technology Exhibition!

The E-LOCK series offers a wide variety of sizes and shapes to meet various needs. In addition to its anti-loosening performance, it excels in durability, providing safety and reliability in various vibration scenarios. 【What’s great about E-LOCK!】 ■ Exhibits stable anti-loosening effects ■ Prevents early detachment even if the tightening axial force decreases ■ Suitable for fastening soft or easily damaged materials ■ Easy installation that prevents installation errors ■ All-metal products, excellent in heat and cold resistance ■ Can be reused multiple times ■ NETIS registration number: KK-180059-A 【Exhibition Details】 Exhibition Name: 2020 Automotive Technology Exhibition in Yokohama Date: May 20 (Wednesday) to May 22 (Friday), 2020 10:00 AM to 6:00 PM *Until 5:00 PM on the 22nd Venue: Pacifico Yokohama Exhibition Hall Booth: 426 *For more details, please contact us or download the catalog.

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Can be used as dress-up parts! 12POINT E-LOCK

Can be used as dress-up parts! 12POINT E-LOCK

【Design application in progress】 It has good design quality and can be used as custom parts for motorcycles, as well as for loose prevention nuts for exterior fences and grating!

The "12POINT E-LOCK®" not only provides stable anti-loosening effects of E-LOCK but also supports screwing in with 12 points! There is no slipping during screwing and tightening, allowing for stable torque work, and due to its good design, it can be used as a custom part for motorcycles and other applications! Since monkey wrenches and spanners cannot be used, it also serves as a simple anti-tampering measure. 【Features】 ■ Available sizes range from M3 to M12 ■ Materials include S10C, S45C, and stainless steel (SUSXM7) ■ Tightening tools can be used as is (for 12-point socket wrenches) ■ High design quality allows it to be used as a visible nut ■ NETIS registration number: KK-180059-A 【Usage Areas】 ■ Custom parts for motorcycles and similar vehicles ■ Anti-loosening nuts for exterior fences and grating ■ Anti-loosening nuts for supports, beams, and other construction elements ■ Anti-loosening nuts for generators and agricultural tools ■ Used in areas prone to vibrations that are likely to loosen.

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[NETIS Registration] Nut to Prevent Loosening *Product Sample Giveaway

[NETIS Registration] Nut to Prevent Loosening *Product Sample Giveaway

A special spring prevents the loosening of nuts! It is strong against vibrations and provides a secure fastening, with a variety of shapes available.

The "E-LOCK Series" of locking nuts is a revolutionary product that integrates a special spring (friction ring) with the nut to prevent loosening. It provides stable anti-loosening effects for long periods, even in areas with severe vibrations or where regular maintenance is difficult. There are various shapes available to suit different applications. *We offer a free "Product Catalog" filled with information such as "vibration test results" and "tightening torque tables"! We are also giving away product samples to those who request them! 【Features】 ■ All-metal construction with excellent heat and cold resistance ■ Economical and reusable ■ The nut and special spring are integrated for easy installation ■ NETIS registration number: KK-180059-A

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TRES LOCK Series Features

TRES LOCK Series Features

Relaxation and trust with a locking effect! All-metal products with excellent heat and cold resistance!

Osaka Forming Co., Ltd. manufactures and sells its own brand products, the "TRES LOCK Series." The "TRES LOCK Series" prevents early detachment even when the tightening axial force decreases. Thanks to its structural design that minimizes variations in screwing torque, setting and managing the tightening torque has become easier. 【Features】 ■ Provides stable loosening prevention effect ■ Easy installation work, preventing installation mistakes ■ Suitable for tightening soft or easily damaged materials ■ Intermediate locking is possible ■ Can be reused several times *For more details, please refer to the PDF materials or feel free to contact us.

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TRES LOCK Series - Structure Type A・Type B

TRES LOCK Series - Structure Type A・Type B

Introducing two types of structures from the TRES LOCK series that achieve high loosening prevention performance.

Osaka Forming Co., Ltd. manufactures and sells its own brand products, the "TRES LOCK Series." This series offers two types of structures: "Type A," which transforms a circular screw hole into a triangular shape, and "Type B," which crushes a portion of the screw thread. To meet various customer needs, we offer a wide range of specifications and sizes. 【Features】 ■Type A - Made to order - The boss part on the top surface of the nut is pressed from the side ■Type B - Regular stock item - The threaded part on the top surface of the nut is pressed from above *For more details, please refer to the PDF document or feel free to contact us.

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