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 SDC U.S.A. CORP.
Seattle, Washington
Registration
Registrar : JIC Quality Assurance Ltd.
Applicable Standard : JIS Q 9001:2000/ISO 9001:2000
Registered Scope :
  • Design, Development and Production of Pure Titanium Nut, Bolt and Washer (SDC Titanium Bolt)
  • Design, Development and Production of Titanium Alloy Bolt (SDC Titanium Alloy Bolt)
  • Production of Stainless Steel Nut, Bolt and Washer (SDC Bolt, SDC Bo-shoku Bolt and SDC Color Bolt)
  • Design, Development and Production of Stainless Steel Nut, Bolt and Washer (SDC Electric Insulating Bolt)
  • Design, Development and Production of Stainless Steel Bolt (SDC Clean Bolt)

Applicable standard : JIS Q 9100:2004/JIS Q 9001:2008 (ISO 9001:2008)
Registered Scope : Manufacture of Plasma Heat Treated or Vacuum Heat Treated 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
Number of Employees 20
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.