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

Stainless steel, known for its properties such as corrosion resistance, heat resistance, and workability, as well as its ease of maintenance, is widely used in everything from everyday household items to large structures. Stainless steel is also commonly used as a material for screws. We are currently offering a technical document titled "Why Doesn't It Rust?! Basic Knowledge of Stainless Steel: Understanding Types and Characteristics," which clearly explains the types and characteristics of stainless steel, the reasons it is resistant to rust, and the conditions under which it can rust, complete with illustrations. If you want to learn the basics of stainless steel, please take a look.

Do you know about the performance evaluation of screws? Screws are often perceived as standard products, but many of the precision screws we handle are developed through various performance evaluations based on customer requirements. Screws are fastening components that significantly impact the strength of mechanical structures. Loosening or breaking of screws can lead to major accidents. The performance evaluation of screws includes many items, such as the unique "axial force," "loosening," and "tensile strength," as well as the screw's own "durability," "mechanical strength," and "fatigue strength." Our company is equipped with testing facilities to conduct evaluations for each of these performance aspects. We have summarized the types of equipment we use for performance evaluation. Each test is explained with photos, detailing the overview of the testing machines, as well as the purpose and content of the tests. Some of the testing machines have been developed in collaboration with academic institutions. *Specific examples of tightening tests and delayed fracture tests have been added. Please take a look at the performance evaluations accumulated by Daiichi Kogyo Co., Ltd. as a total fastener manufacturer. Feel free to contact us with any inquiries.

Daiichi Kogyo is a specialized group that develops and manufactures fastening components, including both bolts and nuts. We conduct "forging," "machining," and "welding" in-house, accumulating production and manufacturing technology. While "forging" is the standard method for screw manufacturing, "machining" is also an important processing technology in screw production, especially when complex shapes or additional processes like drilling are required. Additionally, "welding" is a processing technology used in the manufacturing of fastening components to join two items together. Daiichi Kogyo possesses the manufacturing know-how necessary for "forging," "machining," and "welding" required for screw production. We can also perform "composite processing" that combines these methods. Our accumulated expertise in each processing technology allows us to design processes that leverage the unique characteristics of each method. We have compiled fundamental knowledge on screw manufacturing techniques, specifically "machining" and "welding." We will clearly explain each processing technology, manufacturing processes, and points to note regarding "machining" and "welding" in screw production, accompanied by images for better understanding. You can view related catalogs for free. Please take a look. Feel free to contact us with any inquiries.

"Cutting processing" is a machining method that shapes materials by cutting them with cutting tools to achieve the desired shape. While "forging processing" is commonly used for screw manufacturing, "cutting processing" is also an important machining technique in screw production, especially when complex shapes or additional operations like drilling are required. At Daiichi Industry, we manufacture a variety of products such as aluminum nuts, stainless steel nuts, front bosses, and bushes through "cutting processing." We also possess technical know-how for "forging processing" and "welding processing," allowing us to produce composite machined products that combine these methods. We have created materials that explain the advantages and disadvantages of cutting processing, examples of screw manufacturing processes using cutting processing, and points to note and countermeasures in cutting processing. - Types of cutting processing - Advantages and disadvantages of cutting processing - Screw manufacturing process using cutting processing (aluminum nut edition) - Points to note and countermeasures in cutting processing The explanations are clear and accompanied by photos. Please take a look. You can view it for free from related catalogs. Feel free to contact us with any inquiries.