第一工業 List of Products and Services

Here are some examples of cases where SSOO nuts were adopted due to their high torque resistance performance. <Adoption Case 1> Adoption Location: Automotive intercooler parts (3 SSOO nuts, M6 size used) Target Resin: PA66-GF35 (Polyamide 66, 35% glass fiber) [Challenges] ■ Need to tighten resin parts with high torque ■ Knurled type insert nuts slip when tightened too much [Solution] ■ Meets requirements with high torque resistance performance ■ No worries about slipping or coming loose [Effect] ■ Protects resin parts from damage <Adoption Case 2> Adoption Location: Turbo engine vehicle intercooler parts (2 SSOO nuts, M6 size used) Target Resin: PA-GF35 (66 nylon, 35% glass) [Challenges] ■ Requirement for tightening with high torque ■ Knurled type insert nuts experience slipping and coming loose [Solution] ■ Meets requirements with high torque resistance performance ■ No worries about slipping or coming loose [Effect] ■ Protects resin parts from damage *An intercooler is a component used to cool air compressed by a supercharger (such as a turbo or supercharger).

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An insert nut is a "fastening component" that is embedded in soft materials such as resin (plastic) to enhance the fastening strength of joints. With the aim of reducing weight, the use of resin is increasing. Insert nuts are used for fastening resin parts in various devices such as mobile phones, automobiles, and airplanes. This document provides a clear explanation of the "basic knowledge of insert nuts," including their features, types, usage, and materials, accompanied by illustrations. It also includes information on the types and characteristics of resins used with insert nuts. *For more details, please download the document or contact us directly.*

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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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Metal processing includes a method called cold heading, which uses molds to achieve plastic deformation. Cold heading has the advantage of significantly less material waste compared to cutting processes, as well as stable precision and production speed, making it suitable for mass production of items such as bolts and nuts. However, for complex shapes like concave forms, cutting processes were necessary. Our company has introduced a re-header machine (split mold forming machine) that allows us to perform cold heading on semi-finished products after the initial heading process, enabling the formation of complex shapes and eliminating the need for cutting processes through net shape processing. By combining header and re-header machines, we have improved processing efficiency for complex shapes, allowing us to propose solutions for mass production. Additionally, the reduction of waste material from cutting processes helps lower costs.

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There are various processing methods in metalworking, including casting (foundry), plastic processing (forging, pressing, rolling), sheet metal processing (pressing, drawing), cutting processing (lathe, milling, drilling), grinding processing (polishing, grinding), and joining processing (welding, brazing). This time, we will introduce the combination of "plastic processing" and "cutting processing," which our company specializes in. In our fastener division, we combine "cold heading" from plastic processing with "dual-end machining" from cutting processing to produce vibration-damping components for four-wheel vehicles (automobiles), providing high-precision and complex products at low prices that are difficult to achieve with cold heading alone. Additionally, through combinations such as "cold heading" + "NC lathe," we also produce torque converter components for four-wheel vehicles (automobiles), which have received positive feedback from our customers.

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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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"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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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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Mechanical structures such as automobiles, home appliances, and buildings are assembled by joining multiple parts together. Therefore, joining is common across all industries and is the most fundamental technology for maintaining performance and quality. Joining can be broadly classified into welding through the melting and solidification of metals, chemical adhesion, and mechanical fastening through screws. Each of these methods has many advantages and is an important joining technique, but the only method that allows for high strength and the possibility of disassembly and reuse is mechanical fastening with screws, which is also considered to play an important role in today's environmental issues. Screws are a representative mechanical component that was standardized by ISO early on as a key element of globalization and are widely distributed in the market; however, there are significant differences in safety, performance, and quality among manufacturers. Through diligent research activities to meet users' needs for screw fastening, we are committed to improving the safety, performance, and quality of screw products.

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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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An insert nut is a fastening component used to reinforce the joints between materials by embedding it in soft materials such as resin. In the transportation equipment sector, it is expected that resin composite materials will continue to be adopted for weight reduction, and the use of insert nuts as fastening components is anticipated to increase. This document provides a compact summary of the basic knowledge regarding insert nuts. It is a simplified version that allows for easy reading of the fundamentals of insert nuts. If you want to learn more about insert nuts, please take a look. For more details, please download and view the catalog.

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