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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. A document summarizing the screw manufacturing technology of Daiichi Industry (forging, cutting, welding) is now available!
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  • Jun 17, 2024
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Jun 17, 2024

A document summarizing the screw manufacturing technology of Daiichi Industry (forging, cutting, welding) is now available!

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)
Do you know how the screws around you are made? There are various methods for processing screws, including cutting processes that remove metal, plastic processes that shape metal by compressing it, and welding processes that melt and join metals together. Each method has its own advantages and disadvantages, as well as different shapes and materials it excels at processing. Our company possesses the manufacturing know-how necessary for screw production, including "forging," "cutting," and "welding." We also offer "composite processing" that combines these methods. By leveraging the characteristics of each process, we achieve optimal cost and quality in screw manufacturing. As a specialized group in fastening components, our company, which handles "forging," "cutting," and "welding," has published materials summarizing each of these technical details. For more information, please download and view the catalog page below.
Bolts from Daiichi Kogyo Co., Ltd.
Bolts from Daiichi Kogyo Co., Ltd.
First Industrial Co., Ltd. Nut
First Industrial Co., Ltd. Nut
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Daiichi Kogyo Co., Ltd. Bolt and Screw Division Homepage
This is the homepage of the Bolt and Screw Division of Daiichi Kogyo Co., Ltd. We introduce original screw products.

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[Technical Information] Understand the Basics of Screw Manufacturing Technology [Forging Process]

[Attention Engineers] The Basics of Screw Manufacturing Technology: "Forging Process." We are currently offering free technical materials on "Basic Knowledge of Forging Process," which explains the differences in the manufacturing of bolts and nuts.

Many "screw products" such as bolts and nuts are manufactured using "forging." "Forging" is a processing method that uses molds to shape metal materials by compressing them. It has many advantages, such as good yield, suitability for mass production, and increased strength due to work hardening. Although both are "screw products," bolts and nuts differ in materials, manufacturing processes, and manufacturing equipment. At Daiichi Kogyo, as a specialized group that manufactures both bolts and nuts, we have accumulated production and manufacturing technologies that correspond to each of these differences. We also utilize FEM analysis to conduct forging simulations, which are applied in process design and mold design. The reason we can manufacture both bolts and nuts can be found in the link below: "Production and Manufacturing Technology of the Specialized Group." A specialized group that manufactures both bolts and nuts has compiled "Basic Knowledge of Forging." We provide a clear explanation of the actual processing steps with accompanying photographs. Improvement examples utilizing FEM analysis are also included. Please download and take a look.

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[Technical Information] Basics of Screw Manufacturing Technology [Cutting and Welding] Will Be Taught

[Attention Engineers] Screw manufacturing is not just about forging. There is also cutting and welding. We offer a free [technical document] that provides fundamental knowledge of each technique!

Daiichi Kogyo is a specialized group that develops and manufactures fastening components, including bolts and nuts. 【What a specialized group can do】 While "forging" is the common method for screw manufacturing, "cutting" is also an important processing technique for screw production when complex shapes or additional processes like drilling are required. Daiichi Kogyo possesses the manufacturing know-how necessary for "forging," "cutting," and "welding" in screw production. We can perform "composite processing" that combines these techniques. Forging + Cutting + Welding ⇒ Composite products With the accumulation of each processing technique, we can set up processes that leverage the characteristics of each method. 【Manufacturing Example】Production of parts with strict precision requirements. ● When manufactured using only "forging," the load on the mold increases, raising concerns about mold lifespan and quality deterioration. ↓ ● By switching from "forging" to "cutting" for manufacturing, we can reduce the load on the mold and lower forging costs, achieving quality improvement as well. For more details, please visit the following 【Daiichi Kogyo Co., Ltd. Fastener Division Fastening Components Site】. We are currently offering free technical materials that provide basic knowledge of screw manufacturing techniques, including "cutting and welding." Please download and take a look.

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Basics of Screw Manufacturing Technology [Forging Edition] Part 2 of First Industrial's Screw Manufacturing Technology "Forging Process of Nuts and Collars"

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You will understand the basics of screw manufacturing technology, "cutting processing." Basics of screw manufacturing technology [Cutting Edition] "Screw manufacturing technology of Daiichi Kogyo."

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The manufacturing technology of screws also includes "welding processing." "Basics of Screw Manufacturing Technology [Welding Edition] First Industrial's Screw Manufacturing Technology."

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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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Recommended for earthquake measures for automatic doors and equipment! Seismic device HK-2.

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Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

Jun 05, 2026

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Jun 05, 2026

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Setting overly optimistic 'projections' compared to reality!? 'Planning Fallacy'

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As heatwave risks continue to rise and workplace heatstroke prevention requirements become increasingly important, how can organizations encourage employees to maintain safe behaviors consistently?

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Jun 05, 2026

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