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  3. 第一工業 鋲螺事業部(ネジ・ボルト・ナット等締結部品 製造販売. 静岡県浜松市)
  4. From structural materials to new materials. Understand the mechanical properties of screw materials! We introduce the technical document "Textbook on Surrounding Technologies of Screws Vol. 1: How to Choose Screw Materials."
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  • Jan 24, 2022
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Jan 24, 2022

From structural materials to new materials. Understand the mechanical properties of screw materials! We introduce the technical document "Textbook on Surrounding Technologies of Screws Vol. 1: How to Choose Screw Materials."

第一工業 第一工業 鋲螺事業部(ネジ・ボルト・ナット等締結部品 製造販売. 静岡県浜松市)
There are many types of screws represented by bolts and nuts, which are mainly manufactured using steel materials. In recent years, due to increasing customer needs for corrosion resistance, resistance to loosening, lightweight design, and compactness, the selection of materials other than steel has also increased. The characteristics and strength (tensile strength, yield point, etc.) of screws vary depending on the materials and processing methods used. If inappropriate materials are used, the necessary force for fastening may not be achieved, increasing the risk of serious accidents due to screw loosening or breakage. To prevent such risks, it is important to choose the optimal materials according to the purpose and usage environment. In "Textbook on Peripheral Technologies of Screws Vol. 1: How to Choose Screw Materials," we explain the mechanical properties of conventional steel materials, stainless steel, aluminum, titanium, and plastics. Please use this as a reference for selecting screw materials. You can view it for free from related catalogs. Feel free to contact us for inquiries.
Textbook on Screw Peripheral Technology Vol. 1: How to Choose Screw Materials
Textbook on Screw Peripheral Technology Vol. 1: How to Choose Screw Materials
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Introduction to Daiichi Kogyo Original Screw Products
As specialists in screws, our company handles screw products made from various materials such as iron, aluminum, stainless steel, and titanium. If you have any inquiries regarding screw products or any other concerns, please feel free to consult us.

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ねじの周辺技術の教科書(完全版).jpg

Understanding Everything About Screws (Complete Edition) - A Textbook on Surrounding Technologies of Screws

I will teach you how to make screws. We will provide free technical materials that cover everything about screw making, including materials, processing methods, inspection, and evaluation tests.

Screws are used in various machines such as transportation equipment and structures, but do you know how screws are made? Even seemingly simple screw components have various characteristics depending on their applications and purposes, including materials, processing methods, and inspection methods. To choose the right screw for a specific use, it is important to understand the characteristics of each manufacturing process, as well as inspection and evaluation tests. The textbook series on screw-related technologies explains the techniques involved in screw manufacturing in an easy-to-understand manner. If you are struggling with screw selection or want to learn about the technologies related to screw manufacturing, please refer to the PDF materials. Feel free to contact us with any inquiries.

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加工法別!ねじ用鉄鋼材がわかる『ねじ用鉄鋼材料の基礎知識』.PNG

Processing Methods! Understanding Steel Materials for Screws: 'Basic Knowledge of Steel Materials for Screws'

The basics of materials for screws, steel materials. I will teach you tips for selecting materials according to processing methods and applications. Includes a material table by strength classification.

Steel is widely used as a material for screws because it is inexpensive, readily available, and strong. The main types of steel used for screws include carbon steel, which is primarily composed of iron and carbon, and alloy steel, which has elements such as chromium and molybdenum added. When strength and corrosion resistance are required for screws, the chemical composition of the steel can be altered, processing methods can be changed, or heat treatment can be applied to modify the material's mechanical properties. By utilizing the characteristics of the materials, various steel screws are produced to suit different applications and purposes. This document provides a clear explanation of the types and characteristics of steel materials suitable for screw processing methods and applications, as well as the strength classifications of steel screws, offering fundamental knowledge about steel materials for screws. *If you would like to learn more about steel materials for screws, please feel free to check the PDF document. Do not hesitate to contact us with any inquiries.*

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なぜ錆びない!種類と特徴がわかる『ステンレス鋼の基礎知識』.PNG

Why doesn't it rust?! Basic knowledge of stainless steel: types and characteristics.

This document explains why stainless steel does not rust and why it can rust. It is a technical document that outlines the types and characteristics of stainless steel.

Stainless steel is a highly corrosion-resistant alloy made by adding elements such as chromium and nickel to a base of iron to enhance its corrosion resistance. Due to its properties such as corrosion resistance, heat resistance, workability, and ease of maintenance, it is widely used in everyday items as well as large structures, with various applications ranging from household goods and transportation equipment to nuclear power and space development. Different types of stainless steel have been developed and manufactured to suit these applications. This document provides a clear explanation of the types and characteristics of stainless steel, the reasons for its rust resistance, and the conditions under which it rusts, offering fundamental knowledge about stainless steel. *For more details, please download the document or contact us directly.*

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This is the basics of performance evaluation! First Industrial's screw evaluation test.

We are evaluating the performance of screws and fasteners. We will introduce the testing equipment and test examples to ensure the performance of the "screw"!

Screws are the fundamental mechanical elements that "connect things." Despite being small parts, the role of screws in "fastening" is significant. To fulfill this important role, various functions and performances are required of screws. Evaluations are diverse to confirm whether the "required performance is met." At Daiichi Industry, we assess the performance of screws and fastening bodies using various testing equipment. Due to the wide range of required functions and performances, many testing facilities are necessary, including those uniquely developed in collaboration with academia. What kind of equipment is used, and what items are evaluated? What evaluation results can be obtained from actual test examples? We introduce the test contents and inspection items with accompanying photos. Please check it out through the PDF download. Feel free to contact us as well.

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Insert bolt that can be tightened without breaking the resin of "SSOO Bolt".

A high-torque compatible embedded bolt for resin that is strong against rotation and withdrawal, and does not damage the resin. It allows for nut tightening when embedded in resin parts.

The "SSOO Bolt" is a resin embedded bolt (insert bolt) with a special octagonal head shape, offering excellent torque resistance and pull-out strength. An insert bolt is a bolt that is embedded in resin and fastened with a nut. By tightening with a nut, it allows for the fastening of resin parts to each other or resin parts to metal. It minimizes deformation and cam-out of the resin when fastened with high torque, enabling nut tightening at high torque levels. It can also be used for back embedding (thermal press fitting), making it suitable for shapes that cannot be integrally molded. Since the bolt can be used in an upright position within the resin, it improves the assembly of parts. The product design has been completely revamped, and sizes from M4 to M8 are now available. 【Features】 ● Special shape that minimizes cam-out and slip even when tightened with high torque ● Strong against pull-out, preventing deformation of resin parts ● Usable for both insert (simultaneous molding) and outsert (thermal press fitting) ● Mass production possible due to unique manufacturing methods ● Trusted Octa Lobular series *For more details, please refer to the materials. Feel free to contact us with any inquiries.

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High torque compatible cap insert nut "SSOO Nut PLUS"

<New Product> Adding more peace of mind! A new insert nut that advances weight reduction. "Doesn't rotate" + "Doesn't loosen" = Protects resin products.

The "SSOO Nut PLUS" adds a cap to the reliable outsert nut, the SSOO Nut! It is a new insert nut from the Octa Lobular(R) series. <Are you having trouble fastening resin parts?> With the SSOO Nut PLUS, you can ensure the high torque resistance and pull-out strength of the "non-rotating" SSOO Nut. It solves the fastening issues of resin parts! 【Features】 ■ High torque resistance performance 1.8 times that of knurled products, preventing slipping and co-rotation even when tightened with high torque. ■ High pull-out strength 1.2 times that of knurled products, also excellent in vibration resistance. ■ Adds a horizontal cap to the SSOO Nut! - Can be used with simultaneous molding, making it suitable for thermosetting resins. - The cap prevents resin from wrapping around, ensuring secure fastening. - The horizontal cap can be used in space-constrained battery parts and resin components. - Prevents loosening by ensuring metal contact. It can be used as either an insert or an outsert, allowing you to choose specifications according to your application. *For more details, please refer to the materials available for download in PDF format or feel free to contact us.

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Solve the problem of nut spinning in resin! High torque compatible SSOO nut.

Attention those struggling with spinning or pulling out nuts embedded in resin! Introducing outsert nuts that protect resin components and allow for high torque tightening.

"Do you have any of these concerns?" - When tightening conventional insert nuts, they can spin or come loose... - I am looking for an insert nut that can be embedded after resin molding... - I want to reduce the number of screw parts for weight reduction... - Brass insert nuts are expensive due to material and processing costs... With the 'SSOO Nut', these concerns can be resolved. 【5 Features】 ● A shape that is resistant to spinning, preventing damage to resin products ● Can be heated instantly by high-frequency vibrations, allowing for post-embedding ● Excellent pull-out strength enables reduction in the number of screw parts and weight reduction ● Uses a widely distributed material (SWCH10R), eliminating worries about material cost fluctuations ● High-speed production through forging and rolling. Allows for cost-effective mass production compared to machining *For detailed information about the SSOO Nut that can solve your concerns, please view the catalog available for download or feel free to contact us.

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Solve the spinning of nuts embedded in resin! SSOI nuts for simultaneous molding.

Are you having trouble with nuts spinning (slipping or freewheeling) during tightening... wanting to reduce the number of fastening components for weight reduction... and so on, when fastening resin parts?

Are you having trouble with fastening resin parts? A special octagonal insert nut that prevents spinning (free rotation) during simultaneous molding. 【We solve the following problems!】 ■ Using knurled or square/hexagonal insert nuts, which cause spinning (free rotation)... ■ Want to reduce the number of fastening parts to cut costs... ■ Looking for a resin insert nut that can handle high torque fastening... *For information on SSOI that can solve your problems, please download the catalog.

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Related catalog(11)

Understanding Well! Screw Materials: Textbook of Screw Peripheral Technologies Vol. 1 - How to Choose Screw Materials

Understanding Well! Screw Materials: Textbook of Screw Peripheral Technologies Vol. 1 - How to Choose Screw Materials

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All About Screws (Complete Edition) - A Textbook on Screw Peripheral Technologies - Everything About Screw Making

All About Screws (Complete Edition) - A Textbook on Screw Peripheral Technologies - Everything About Screw Making

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Understanding Screws! Textbook on Screw Manufacturing and Related Technologies Vol. 2: How to Make Screws - Molding, Heat Treatment, Surface Treatment

Understanding Screws! Textbook on Screw Manufacturing and Related Technologies Vol. 2: How to Make Screws - Molding, Heat Treatment, Surface Treatment

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Understanding Well! Screw Inspection and Evaluation: Textbook of Screw Peripheral Technologies Vol. 3 - Screw Inspection and Evaluation

Understanding Well! Screw Inspection and Evaluation: Textbook of Screw Peripheral Technologies Vol. 3 - Screw Inspection and Evaluation

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Processing Methods! Understanding Steel Materials for Screws: 'Fundamentals of Steel Materials for Screws'

Processing Methods! Understanding Steel Materials for Screws: 'Fundamentals of Steel Materials for Screws'

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Why doesn't it rust!? Understanding the types and characteristics of 'Basic Knowledge of Stainless Steel'

Why doesn't it rust!? Understanding the types and characteristics of 'Basic Knowledge of Stainless Steel'

TECHNICAL
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This is the basics of performance evaluation! First Industrial's screw evaluation test.

This is the basics of performance evaluation! First Industrial's screw evaluation test.

TECHNICAL
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Screw Textbook Vol. 1: [Basic Terms and Types] [A must-see for those who want to understand screws from the basics!]

Screw Textbook Vol. 1: [Basic Terms and Types] [A must-see for those who want to understand screws from the basics!]

TECHNICAL
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Textbook on Screws Vol. 2: [The Mechanism of Screw Tightening] [A must-read for those who want to understand screws from the basics!]

Textbook on Screws Vol. 2: [The Mechanism of Screw Tightening] [A must-read for those who want to understand screws from the basics!]

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Textbook of Screws Learning from the Basics Vol. 3 [Screw Loosening and Countermeasures] [A must-see for those who want to understand screws from the basics!]

Textbook of Screws Learning from the Basics Vol. 3 [Screw Loosening and Countermeasures] [A must-see for those who want to understand screws from the basics!]

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Screw Textbook Vol. 4: [Screw Design Part 1] [A must-see for those who want to understand screws from the basics!]

Screw Textbook Vol. 4: [Screw Design Part 1] [A must-see for those who want to understand screws from the basics!]

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第一工業 鋲螺事業部(ネジ・ボルト・ナット等締結部品 製造販売. 静岡県浜松市)
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Add a sense of cleanliness to the restroom space with fragrance.

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We have introduced our Majesta Fragrance in the restrooms of a company located in the city. The model we implemented is the compact-sized MFmini. By adding fragrance to the clean space, we have created an environment where users can spend their time more comfortably. The restroom, which is used daily, has become a more pleasant and high-quality space.

Aug 14, 2025

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We will be open as usual during the Obon period.

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Thank you very much for always using Majesta Fragrance. Our company will be open as usual during the Obon period. Please feel free to contact us for inquiries about scent arrangements or the introduction of commercial aroma diffusers.

Aug 13, 2025

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Industry Commentary | Advantages of Carbon Steel Solar Mounting Structures

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High Strength, Low Cost: The Economic Advantages of Carbon Steel Frames Carbon steel is inherently strong, and this high structural strength ensures stable wind resistance while allowing for a simple support structure, reducing the need for extra components. This also lowers the wear rate during transportation, enabling further savings in material costs and installation expenses. Transportation and Construction: Streamlining the Entire Project The advantages of carbon steel frames are also evident in the transportation and construction phases. Standardized designs simplify on-site installation and shorten construction periods. For example, carbon steel frames can be packaged using a combination of wooden sticks and iron ties, improving unloading efficiency and increasing transport volume. This reduces construction time and labor costs, distributing the overall burden of the project across all stages. Technological Innovation: Breakthroughs in Corrosion Resistance With the evolution of material technology, the corrosion treatment of carbon steel frames has also significantly advanced. Grace Solar has adapted to the technological trends in process development, and all current carbon steel frames utilize AlMgZn coating. At the same time, to meet the special requirements of each project, our company offers custom options for hot-dip galvanizing.

Aug 13, 2025

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Exhibition Report | Grace Solar's Solar Mounts That Withstand Brazil's Harsh Climate Are Here

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#Intersolar South America - We invite you to attend the most influential solar energy event in Latin America. You will be able to see innovative solar mounting solutions designed for the Latin American market. At booth R2.82, Grace Solar will showcase how it is evolving regional solar projects: - Ground-mounted solar mounting systems suitable for Brazil's tropical storms and humid environments - Flexible roof installation systems that can accommodate diverse architectural needs Let's build the future of solar power together! Venue: Expo Center Norte, São Paulo, Brazil, Booth R2.82 Date: August 26-28, 2025

Aug 12, 2025

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Fragrance production at cabaret clubs in Tokyo.

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We have introduced the commercial aroma diffuser "Majesta Fragrance" to a cabaret club in Tokyo. The selected scent is "Royale," which offers a sense of calm and elegance. It spreads naturally throughout the floor, creating a high-quality space that satisfies the five senses. Majesta Fragrance is available for a free trial installation exclusively in the Kanto area. If you are interested in enhancing your store's scent experience, please feel free to contact us.

Aug 12, 2025

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