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Cold-formed parts manufacturing | High-precision parts, insert nuts, gears, collars

株式会社山口ナット|東京都墨田区・埼玉県久喜市
  • 100th Anniversary Page
  • Technology, Development, and Quality
    • Yamaguchi Nut Manufacturing Method
      • Cold heading (former)
      • Tapping
      • Rolling process
      • NC cutting
    • Yamaguchi Nut's Innovation
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    • Sumida Ward Tourism Association Video Production Project "Tokyo Downtown Cool" Part 1 "Prologue"
    • Sumida Ward Tourism Association Video Production Project "Tokyo Downtown Cool" Part 2 "Ha"
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Product filter search

001. Center flange hexagonal M6 nut (insert)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

002. M4 cap hole nut (insert)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

003. M6 Nut (Outsert)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

005. Helical gear + worm gear (for door mirrors)

  • 2. Gear
  • 1. Iron
  • 1. Automotive related

006. Worm gear (for door mirrors)

  • 2. Gear
  • 1. Iron
  • 1. Automotive related

009. Square flange M6 nut (outsert)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

010. Square flange M4 nut (outsert)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

011. Worm gear (for door mirrors)

  • 2. Gear
  • 1. Iron
  • 1. Automotive related

012. Square shank blind hole M6 nut

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

013. Hollow M10 bolt

  • 3. Bolt
  • 1. Iron
  • 1. Automotive related

014. M2.6 nut with blind hole

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

018. Square Hole Color

  • 1. - Collars / Nuts
  • 1. Iron
  • 2. Architecture/Housing

020. Medium brim color

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

021. Shim Spacer (Total length 2.0mm)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

023. Shaft parts (welding + riveting)

  • 5. Others
  • 1. Iron
  • 1. Automotive related

024. Relief valve (with hole)

  • 4. High-precision parts
  • 1. Iron
  • 1. Automotive related

025. Color

  • 4. High-precision parts
  • 1. Iron
  • 1. Automotive related

026. Collar with brim

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

027. M3 blind hole nut (insert)

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

028. Color (Dowel Pin)

  • 4. High-precision parts
  • 1. Iron
  • 1. Automotive related

029. Collar with brim

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

030. M6 nut with blind hole

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

031. Spacer

  • 1. - Collars / Nuts
  • 1. Iron
  • 1. Automotive related

032. Worm gear (for door mirrors)

  • 2. Gear
  • 1. Iron
  • 1. Automotive related
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Head Office: 4-31-7 Ishihara, Sumida-ku, Tokyo 130-0011
TEL.03-3622-4136 FAX.03-3625-4865
Factory: 1510-1 Takayanagi, Kuki City, Saitama Prefecture 349-1125
TEL.0480-52-6791 FAX.0480-52-6004

Contents

  • 100th Anniversary Page
  • Yamaguchi Nut Manufacturing Method
    • Cold heading (former)
    • Tapping
    • Rolling process
    • NC cutting
  • Product filter search
  • Factory and Equipment Guide
  • quality control
  • quality environment

Company Information

  • Company Profile
  • Philosophy and Vision
  • Company History
  • Transportation Information
  • Sumida Ward Tourism Association Video Production Project "Tokyo Downtown Cool" Part 1 "Prologue"
  • Sumida Ward Tourism Association Video Production Project "Tokyo Downtown Cool" Part 2 "Ha"
  • Privacy Policy

Recruitment Information

  • Application Guidelines
  • Messages from employees
  • A day in the life of an employee
  • In-house training program
  • To all family members

what's new

  • Announcement of the appointment of our company president, Seiichi Yamaguchi, as Chairman of the Eastern Fastener Cooperative Association June 3, 2026
  • A factory tour was held for professors and graduate students of the MOT (Management of Technology) graduate school. May 13, 2026
  • We received an award from the Kuki City Social Welfare Council. February 3, 2026
  • Our Philippine factory was featured in the Metal Industry Newspaper! November 12, 2025
  • Notice of publication in industry newspapers regarding the introduction of new equipment November 12, 2025
  • Notice of New Equipment Installation October 23, 2025
  • Our company's 100th anniversary ceremony was featured in a newspaper article. January 27, 2025
  • We held a ceremony to commemorate our 100th anniversary. November 29, 2024
  • Solar panel operation commencement announcement July 30, 2024
  • Notice of Change in Customer Parking Location July 6, 2024

Copyright © Yamaguchi Nut Co., Ltd. | Sumida-ku, Tokyo and Kuki-shi, Saitama. All Rights Reserved.

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  • 100th Anniversary Page
  • Yamaguchi Nut Manufacturing Method
    • Yamaguchi Nut Manufacturing Method
      • Cold heading (former)
      • Tapping
      • Rolling process
      • NC cutting
    • quality control
    • quality environment
    • Factory and Equipment Guide
  • Product Search
    • Product filter search
    • Product List
  • Company Profile
    • Company Profile
    • Philosophy and Vision
    • Company History
    • Transportation Information
    • Sumida Ward Tourism Association Video Production Project "Tokyo Downtown Cool" Part 1 "Prologue"
    • Sumida Ward Tourism Association Video Production Project "Tokyo Downtown Cool" Part 2 "Ha"
    • Privacy Policy
  • Recruitment Information
    • Recruitment Information
    • Messages from employees
    • A day in the life of an employee
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