Locking Nut - メーカー・企業10社の製品一覧とランキング

更新日：Oct 22, 2025 集計期間:Sep 24, 2025～Oct 21, 2025
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Locking Nutのメーカー・企業ランキング

更新日：Oct 22, 2025 集計期間:Sep 24, 2025～Oct 21, 2025
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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

企業ランキングへ

Locking Nutの製品ランキング

更新日：Oct 22, 2025 集計期間:Sep 24, 2025～Oct 21, 2025
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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の製品一覧

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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.

企業：大阪フォーミング
価格：Other

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[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

企業：大阪フォーミング
価格：Other

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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.

企業：大阪フォーミング
価格：Other

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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.

企業：大阪フォーミング
価格：Other

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TRES LOCK Series - Clamping Performance

Introducing the test content to check the variation in pre-bleeding torque.

Osaka Forming Co., Ltd. conducts "TRES LOCK NUT tightening tests" aimed at confirming the variation in the pre-torque of individual nuts. It has been confirmed that the torque performance remains stable from the second repetition of the test onwards, and even by the fifth test, it exhibits the same performance as the second. The TRES LOCK series not only provides anti-loosening performance but also excels in durability, offering safety and reliability in various vibration scenarios. 【Testing Method (Excerpt)】 ■ Measure the pre-torque when the nut is screwed in and when it is unscrewed. ■ The screwing in and unscrewing is performed twice. ■ A 10-second interval is set between the first and second tests. ■ No re-lubrication is performed during the interval. *For more details, please refer to the PDF document or feel free to contact us.

企業：大阪フォーミング
価格：Other

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A wealth of information on various products and equipment! Ver 1

We publish various product news, including details about our commitment to different products! *Materials available upon request.

This document is a compilation of product news issued by Osaka Forming Co., Ltd. It introduces our products, including "E-LOCK nuts and SMART nuts with a focus on the assembly of friction rings," as well as "Hex Weld Nuts Type 1A" and "Hex Nuts with Spring Washers." [Contents] ■Vol.13 Focus on the assembly of E-LOCK nuts and SMART nuts with friction rings ■Vol.14 Basic mechanical properties of the distinctive "recess" of SMART nuts ■Vol.15 Hex Weld Nuts Type 1A ■Vol.16 Hex Nuts with Spring Washers ■Vol.17 Selected for "Kansai Manufacturing New Selection 2015" *For more details, please refer to the PDF document or feel free to contact us.

企業：大阪フォーミング
価格：Other

nut
Spring
Other machine elements

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[Technical Information] On the Principle of Loosening: Advanced Edition

It provides a detailed explanation of "rotational looseness" and "non-rotational looseness" using diagrams!

The loosening of screws can be broadly classified into two types. There is "rotational loosening," which occurs when the male and female threads rotate relative to each other in the direction of loosening, and "non-rotational loosening," which occurs even when they are not rotating relative to each other. Furthermore, screws are used extensively in our daily lives. However, when screws loosen when we do not want them to, it can not only disrupt our lives but also lead to major accidents. It is important that screws do not loosen when we do not want them to, and that they do loosen when we want them to. Research on screw loosening and prevention is considered urgent. 【Classification of Loosening】 ■ Rotational Loosening ■ Non-Rotational Loosening *For more details, please refer to the PDF document or feel free to contact us.

企業：ハードロック工業
価格：Other

bolt

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[Technical Information] How to detect looseness? Axial repeated load testing.

We will introduce the testing method and test examples of axial repeated load testing in detail using photographs!

In addition to the direction perpendicular to the bolt axis, axial repeated loads can also cause loosening. In the case of axial repeated loads, if the bolt and nut are properly tightened and sufficient initial axial force is applied, even when subjected to a large repeated load of 80% of the bolt yield axial force Fy, it can be understood that even standard hex nuts are less likely to experience rotational loosening. On the other hand, if the initial axial force significantly decreases due to some factor, hex nuts and hex nuts with spring washers will completely experience rotational loosening at 50% of the bolt yield axial force Fy, and even double nuts will see the initial axial force drop to about half. From the above results, it can be understood that in the case of hard lock nuts, even when the initial axial force is low or decreases due to some factor, they are less likely to experience rotational loosening. *For more details, please refer to the PDF document or feel free to contact us.

企業：ハードロック工業
価格：Other

bolt

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[Technical Information] Basic Knowledge of Understanding Loosening: Proper Tightening of Screws

When tightening bolts, it is important to select the appropriate strength class and friction coefficient that match the target bolt axial force!

To perform safe screw fastening, sufficient initial tightening force F is required, and for that, it is necessary to tighten with an appropriate tightening torque T. The characteristics of the tightening methods for screw fasteners can be broadly divided into two categories: elastic region tightening and plastic region tightening. Therefore, when fastening bolts, it is important to select the appropriate strength classification (yield stress) and friction coefficient that correspond to the target bolt axial force. Thus, to perform proper screw tightening, it can be said that it is essential to have a good understanding of the friction coefficient, which greatly influences the tightening torque and initial tightening force. [Tightening Methods for Screw Fasteners] ■ Elastic Region Tightening: Tightening within the range where the bolt does not yield ■ Plastic Region Tightening: Tightening within the range where the bolt yields and reaches the limit tightening axial force *For more details, please refer to the PDF document or feel free to contact us.

企業：ハードロック工業
価格：Other

bolt

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[Technical Information] About the Structure of Screws

We will provide detailed information about commonly used metric threads for fastening, including diagrams and tables.

In the fastening of mechanical structures (screw fasteners), screws are important components. They can be removed when necessary. The ability to repair mechanical structures and reuse them is a key feature. According to the screw fastening general rules (JIS B 1083:2008), screw fastening is defined as the method or state of joining two or more items by fitting the threaded part of a bolt with the nut or the internally threaded part formed in the item, and tightening the screw. A screw fastening assembly is defined as the entire structure with a screw fastening part or a part of the structure that includes the screw fastening part. Our technical information site "Screw Fastening Technology Navigation," which contributes to solving screw fastening challenges, provides detailed information about "the structure of screws." Please take a look through the related links. *For more details, please feel free to contact us.

企業：ハードロック工業
価格：Other

bolt

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[Technical Information] About Tightening Stress

I will introduce tensile stress σ and shear stress τ!

When tightening bolts and nuts, the points to be aware of regarding the relationship between the tightening torque and axial force in the threaded joint can be broadly categorized into the following two points: (1) When the tightening torque is too high relative to the strength of the bolt and nut. (2) When the tightening torque is too low relative to the strength of the bolt and nut. Our technical information site "Screw Fastening Technology Navi," which contributes to solving issues related to screw fastening, confirms the stresses that occur inside the bolt during fastening and addresses the issue of screw failure when the tightening torque is too high, providing detailed information on this topic. Please take a look at the related links. *For more details, please feel free to contact us.

企業：ハードロック工業
価格：Other

bolt

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[Technical Information] On Metal Damage: "Corrosion"

We will provide a detailed introduction to general corrosion, pitting corrosion, and galvanic corrosion!

The main forms of corrosion include "uniform corrosion, pitting corrosion, and galvanic corrosion." Other types of corrosion include "crevice corrosion," which occurs due to the formation of an oxygen concentration cell in tiny gaps on the order of microns, "grain boundary corrosion," where the grain boundaries preferentially corrode, "erosion corrosion," which involves the action of wear by fluids, and "high-temperature oxidation," which occurs in high-temperature atmospheres or steam. Our technical information site "Screw Fastening Technology Navi," which contributes to solving issues related to screw fastening, features the three main forms of corrosion (uniform corrosion, pitting corrosion, and galvanic corrosion). Please take a look through the related links. [Contents] ■ Main forms of corrosion - Uniform corrosion - Pitting corrosion - Galvanic corrosion ■ Special types of corrosion cracking - Stress corrosion cracking - Hydrogen embrittlement cracking *For more details, please feel free to contact us.

企業：ハードロック工業
価格：Other

bolt

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Basic knowledge of screws, including technical information on fastening and loosening.

We have prepared technical materials on screw fastening and loosening in the form of columns, videos, and downloadable documents. This is a site we would like engineers to utilize.

Content Overview 【Loosening of Screws】 Principles/Types/Evaluation/Testing/Countermeasures 【Design and Tightening of Screw Fasteners】 Mechanics/Design of Screw Fasteners/Screw Tightening Methods/Screw Tightening Tools 【About Screws】 Standards/Types and Usage/Materials/Surface Treatment/Strength of Screw Components 【Screw Troubles】 Troubles during Screw Tightening/Troubles after Screw Tightening/Others (Troubles) ↓↓For more details, click here↓↓

企業：ハードロック工業
価格：Other

bolt

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Locking nut "GU-NUT" compliant with JIS standards.

Expanded the shape of the friction ring to 270°! A lock nut that complies with JIS standards.

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.

企業：株式会社冨士精密
価格：Other

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Locking nut "CLIP U-NUT"

A locking nut that only requires drilling a hole in the material, eliminating the need for welding nuts or tapping screws.

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.

企業：株式会社冨士精密
価格：Other

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