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Forged bolt - List of Manufacturers, Suppliers, Companies and Products

Forged bolt Product List

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Nakano Bolt Factory Co., Ltd. "Strengths"

Nakano Bolt Factory Co., Ltd. "Strengths"

A comprehensive manufacturer of bolts! We are dedicated to creating precise and flexible products using advanced hot forging technology every day.

Nakano Bolt Factory is a comprehensive manufacturer of bolts. We mainly manufacture and sell bolts used in the fields of civil engineering, construction, steelmaking, shipbuilding, and railways, responding to increasingly complex and advanced needs year by year. Recently, our products are being used not only domestically but also in overseas railways. Additionally, we are a certified factory of the "Japan Water Works Association Inspection Factory," which is considered difficult to obtain. Utilizing our strongest asset, "hot forging technology," we are committed to creating precise and flexible products every day. 【Strengths】 ■ Experts in bolts ■ Strong in custom-made products ■ Integrated production system *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • Contract manufacturing

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Fukuoka City Waterworks Bureau Designated Factory Certification Registration

Fukuoka City Waterworks Bureau Designated Factory Certification Registration

Certified and registered as a "Japan Waterworks Association Inspection Factory" and "Fukuoka City Waterworks Bureau Designated Factory" in Kyushu!

Nakano Bolt Factory Co., Ltd. is a bolt manufacturer registered as a testing factory by the Japan Water Works Association (registered in June 1973). To be registered as a "Japan Water Works Association Testing Factory," it must meet standards equivalent to JIS. Since it is drinking water that we consume daily, strict standards are set to prevent health hazards due to defective bolts. *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • Contract manufacturing

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Bolt manufacturing utilizing hot forging technology.

Bolt manufacturing utilizing hot forging technology.

Small lot, multi-variety production is possible! We can also create special bolts.

The greatest strength of Nakano Bolt Factory Co., Ltd. lies in the manufacturing of bolts utilizing "hot forging technology." Hot forging is a method of processing metal while it is heated and in a flexible state. Using this method, our company manufactures bolts with various shapes of heads. We have a team of veteran craftsmen skilled in mold making, enabling us to create even special bolts. In the past, we have a track record of producing a single bolt, and our ability to manufacture small lots and a variety of products is one of the reasons why we are chosen by customers. 【Features of Hot Forging】 ■ Can manufacture complex shapes ■ No internal defects and high strength *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • Contract manufacturing

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Brochure "What is Forging Technology?" 【*Free Gift Available!】

Brochure "What is Forging Technology?" 【*Free Gift Available!】

Introducing the know-how of forged products essential for the development of infrastructure such as railways, civil engineering, shipbuilding, and construction! Get a free booklet now!

As a leading company in the rail fastening component manufacturing industry, we have been dedicated to the development of unique automation equipment and the improvement of technology, allowing us to produce better products at lower costs. We would like to introduce the forging technology of Teikoku Seibou. With our expertise in forging technology, we assist companies in various industries, including JR companies, municipal transportation bureaus, and private railways, in bringing their products to market. *For more details, please download the catalog. *For urgent matters or technical inquiries, please contact us directly through our website.

  • fastener
  • nut

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Nakano Bolt Factory Co., Ltd. "Manufacturing Process"

Nakano Bolt Factory Co., Ltd. "Manufacturing Process"

We are always manufacturing bolts in a perfect environment!

The Nakano Bolt Factory manufactures bolts used in water pipes as an inspection factory certified by the Japan Water Works Association. Strict standards are set to ensure that the tap water we consume daily is not adversely affected by defective bolts (such as dimensional abnormalities or insufficient strength). As a certified factory, we undergo regular inspections from the Japan Water Works Association, which includes on-site checks and product evaluations, ensuring that we always manufacture bolts in a fully compliant environment. 【Bolt Manufacturing Process】 1. Cutting: Cutting iron materials of about 6 meters into the required lengths. 2. Forging: Heating the cut pieces with heavy oil to shape the heads of the bolts. 3. Burr Removal: Removing burrs that form around the heads of the bolts during forging. 4. Upsetting: Reducing the diameter of the bolt by upsetting part of it. 5. Thread Rolling: Performing thread processing on the upset section of the bolt. *For more details, please refer to the PDF document or feel free to contact us.

  • bolt
  • Contract manufacturing

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