Management Philosophy

    • We are conscious of fasteners are a vital element in mechanical structures.
    • We pursue quality assurance as our most important mission.
    • Believing that profit is a by-product of our customer's trust in our products, each of our employees gives his/her all each day to meet the needs of the fastener industry.

Company Overview

Company Name SDC Tanaka Inc.
Executive Officers Chairman & CEO Koichi Tanaka
President & COO Shin-ichi Tanaka
Headquarters 1-10-6, Tedukayamanaka, Sumiyoshi-ku, Osaka, 588-0053 Japan
Tel:+81-6-6672-3701 Fax:+81-6-6672-3753
Tokyo Office 1-21-2-305, Ooi, Shinagawa-ku, Tokyo 140-0014 Japan
Tel:+81-3-3778-3391 Fax:+81-3-3778-3392
South Osaka Operation Center 657-5, Kano, Kanan-cyo, Minamikawachi-gun, Osaka 585-0012 Japan
Tel:+81-721-93-1501 Fax:+81-721-93-7876
Sakai Plant 4-132-1,Kannabe-cho,Sakai-ku,Sakai-shi,Osaka,Japan Tel:+81-72-224-7477 Fax:+81-72-224-7488
Registration
Registrar : JIC Quality Assurance Ltd.
Applicable Standard : JIS Q 9001:2008/ISO 9001:2008
Scope of Certification:
  • Plasma Heat Treatment and Vacuum Heat Treatment
  • Design, Development and Production of Pure Titanium Nut,Bolt and Washer
  • Design, Development and Production of Titanium Alloy Bolt
  • Design, Development and Production of Stainless Steel Nut,Bolt and Washaer

Other Sites in the Scope of Certification:
South Osaka Operation Center : 657-5, Kano, Kanan-cyo, Minamikawachi-gun, Osaka 585-0012 Japan
[Manufacturing and Sales of Fasteners (Nuts,Bolt and Washer)]
Sakai Plant :
4-132-1,Kannabe-cho,Sakai-ku,Sakai-shi,Osaka,Japan
[Plasma Heat Treatment and Vacuum Heat Treatment]

Applicable standard :
JIS Q 9100:2009/JIS Q 9001:2008 (ISO 9001:2008) Scope of Certification:
Manufacture of Plasma Heat Treated or Vacuum Heat Treated Aerospace Metal Parts
(Exclusion:7.3 Design and Development)

Other Sites in the Scope of Certification:
South Osaka Operation Center : 657-5, Kano, Kanan-cyo, Minamikawachi-gun, Osaka 585-0012 Japan
[Manufacturing of Aerospace Metal Parts]
Sakai Plant :
4-132-1,Kannabe-cho,Sakai-ku,Sakai-shi,Osaka,Japan
[Plasma Heat Treatment and Vacuum Heat Treatment of Aerospace Metal Parts]

OASIS, the IAQG Online Aerospace Supplier Information System

(Tokyo Office is removed.)
Founded January 1, 1932
Established July 1, 1971
Capital JPY 127,650,000
Banks The Bank of Tokyo-Mitsubishi UFJ, Ltd. Abenobashinishi branch
The Shoko Chukin Bank Osaka branch
Participating Association Japan Water Works Association
Japan Sewage Works Association
Osaka Prefectural Manufacturing & Industrial Association
Japan Titanium Society
The Japan Society for Heat Treatment
Next-generation Aviation Parts Suppliers Networks (OWO)
Major Line of Business
  • Manufacture and sale of SDC bolt and various types of specialty fasteners
  • Import and sale of plastic protection parts
  • Plasma Surface-Hardening Process(Plasma Carburizing and Plasma (Ion) Nitriding)
  • Sale of SDC fastener performance testing machine
Facilities
  • SDC Plasma Surface Hardening Process Equipment
  • SDC Fastener Performance Testing Machine
  • Full-Digital Servohydraulic Testing System(Fatigue tester)
  • Digital Microscope
  • Laser Microscope
  • Rockwell Hardness Tester
  • Universal Tester (Automatic Recorder-type)
  • Axial Force Meter, Projector
  • Micro Vickers Hardness Tester
  • Dielectric Breakdown Voltage
  • DOS Tester (Stainless Steel Sensitivity Measurer)
  • High-Speed Screw Loosening Measurement Tester(NAS3350 Standard)
  • Bolt and Nut Effective Diameter Measurer
  • Gage for Various Screws, Measuring Instruments, etc.