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Locking nut Product List

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[Technical Information] About the Structure of Screws

[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.

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[Technical Information] About Tightening Stress

[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.

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[Technical Information] On Metal Damage: "Corrosion"

[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.

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

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↓↓

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