Last Updated： Aggregation Period:Dec 31, 2025～Jan 27, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 31, 2025～Jan 27, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 31, 2025～Jan 27, 2026
This ranking is based on the number of page views on our site.
691～705 item / All 1134 items
シングルナットで、単体の取り付けで緩み止め＆脱落防止が可能
吊りボルト専用脱落防止ナット「マッスルナット（赤色チューブ）」は、脱落しません。 一般的な吊ボルトは、JIS規格ではなく、施行性や大量使用用途に向けたコスト面重視のため、 ボルトねじ有効径が細くなっています。そのため、市販のナットでは強く締めても振動等に耐えられず緩んで脱落してしまいます。 その緩みを解消するため、吊ボルト専用のマッスルナットを開発しました（六角ボルトのW3/8、W1/2には使用できません）。 締付けは施行性を良くするため、手でも締められるよう緩めにしてあります（それでも緩めトルクは、W3/8で4.5N・m以上です）。 また、マッスルナットは締付け途中で止めておくことも出来ます。 高所での利用を考慮し視認性を良くするため、赤色チューブを使用しています。 詳しくはカタログをダウンロードしてください。
ROHS compliant, featuring zinc-nickel plating! A non-bending insert that allows for inclined surface insertion. Ideal for areas that are difficult to machine.
The "Enzaart SBE" is a three-hole type insert nut that allows for easy "vertical insertion." This product features a pilot section with guide processing, allowing for easy insertion along the pre-drilled hole, regardless of the orientation of the base material, whether horizontal, vertical, inclined, or curved, unlike standard inserts. Developed to prevent tilting during processing due to the guiding effect of the pilot section, it is particularly suitable for difficult-to-work areas where machining is not possible. 【Features】 ■ Three-hole type insert nut that allows for easy "vertical insertion" ■ ROHS compliant, featuring zinc-nickel plating ■ Particularly suitable for difficult-to-work areas where machining is not possible ■ Can be easily inserted along the pre-drilled hole even on curved or inclined surfaces (does not bend) ■ Further efficiency improvement through pre-drilling with OSG Corporation's flat drill *For more details, please refer to the PDF document or feel free to contact us.
Knowledge for Selecting Hinge Supports: Simplifying the Manufacturing Process by Using Floating Nut Specifications.
【Before】 ■Conventional Fixed Pillars Conventional fixed pillars are designed with screw processing, which makes the engagement of fixing screws not smooth. Depending on the machining accuracy of the panel, fixing with screws may not go well or may require more work. ↓ 【After】 ■Knurled Screws By using pillars with floating nuts or a floating nut specification, the engagement of knurled screws becomes smooth. Even if there is some misalignment during assembly, fastening with screws can be done easily, thereby simplifying the overall manufacturing process of the panel. *For more details, please refer to the catalog or feel free to contact us.
[Knowledge for Selecting Other Accessories and Parts] Easy positioning with a pilot!
【Before】 ■Hex Nut For thin plates where tapping cannot be done, hex nuts can be used for various screw fastening applications by welding them. However, when using standard hex nuts, it can sometimes be difficult to position them correctly during welding. ↓ 【After】 ■Hex Weld Nut In the case of hex weld nuts with a pilot, drilling a pilot hole at the welding point makes positioning easier, thereby improving work efficiency. *For more details, please refer to the catalog or feel free to contact us.
Knowledge for selecting other accessories and parts: Reduce welding work hours with press nut specifications!
【Before】 ■ Weld Nut Specification To secure sufficient threads for panel parts made from thin plates, it is sometimes necessary to weld separate weld nuts to the hole processing area. However, this requires the preparation of specialized tools and the labor of welding each one individually. ↓ 【After】 ■ Press Nut Specification By changing the panel parts from weld nut specification to press nut specification, specialized tools for welding are no longer needed, and multiple pilot holes can be set and pressed in simultaneously, allowing for a reduction in labor hours. *For more details, please refer to the catalog or feel free to contact us.
Knowledge for selecting other accessories and parts: Reducing labor and costs with push nuts.
【Before】 ■Rivet Specification When connecting the lot rod for the panel to the handle's stop pin, it is usually riveted by hammering a rivet pin, which takes time and effort in the riveting process. ↓ 【After】 ■Push Nut Specification By using a push nut instead of the riveting process, it can be easily fixed by simply press-fitting the push nut onto the pin shaft. This prevents excessive riveting from the riveting process and improves appearance. *For more details, please refer to the catalog or feel free to contact us.
From automotive parts to special-shaped nuts! A comprehensive catalog of nut products is a gift!
This is a comprehensive catalog of nut products. We also achieve complex shapes and special processing using warm working technology. 【Featured Products】 ○ M-Lock ○ Automotive parts ○ Color spacers ○ Iron parts, IT-related components For more details, please contact us or download the catalog.
HLN (Hard Lock Nut) / HLB (Hard Lock Bearing Nut)
The Hard Lock® nut, born in Japan and growing globally, possesses a strong anti-loosening effect not found in other lock nuts, along with excellent workability and ease of attachment and detachment. Could the principle of a wedge be applied to prevent loosening? This theme was tackled, and after repeated trial and error, the Hard Lock nut was completed.
![[Technical Information] On the Principle of Loosening: Advanced Edition](https://image.mono.ipros.com/public/product/image/9a0/2000560038/IPROS96184672065473900573.jpeg?w=280&h=280)
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.
![[Technical Information] How to detect looseness? Axial repeated load testing.](https://image.mono.ipros.com/public/product/image/196/2000560040/IPROS02079253595203390592.png?w=280&h=280)
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.
![[Technical Information] Basic Knowledge of Understanding Loosening: Proper Tightening of Screws](https://image.mono.ipros.com/public/product/image/545/2000560041/IPROS04668292118070636294.png?w=280&h=280)
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.
![[Technical Information] About the Structure of Screws](https://image.mono.ipros.com/public/product/image/770/2000562715/IPROS32932385204986967550.png?w=280&h=280)
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.
![[Technical Information] About Tightening Stress](https://image.mono.ipros.com/public/product/image/4eb/2000562771/IPROS28590245715150845447.png?w=280&h=280)
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.
![[Technical Information] On Metal Damage: "Corrosion"](https://image.mono.ipros.com/public/product/image/5e0/2000562855/IPROS81425890521319564406.png?w=280&h=280)
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.
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↓↓
