• Notices

    • 2023 August 4th

      Summer Holidays Closure from August 10 ~ August 16

      HARDLOCK Industry Co., Ltd. will be closed for the Summer Holidays for the below dates:

      Wednesday 10th August 2023 – Tuesday 16 August 2023

      We resume regular business hours from Wednesday 17 August 2023.
      We appreciate your understanding and apologize for any inconvenience caused.

      Best Wishes
      HARDLOCK Industry Co., Ltd.
    • 2023 May 2nd

      Notice of Closure: May 3 ~ 5 “Golden Week Holidays “

      HARDLOCK Industry Co, Ltd. will be closed on the following days for Golden Week: May 3 – May 5, 2023. After the end of the vacation, we will resume our regular business hours beginning May 8, 2023. We apologize for any inconvenience and thank you for your understanding.

      Please note that Golden Week is a series of national holidays in Japan that takes place from late April to early May and includes several important holidays such as Showa Day, Constitution Commemoration Day, Green Day, and Children’s Day. Moreover, this period is one of the busiest times in Japan, as many people take advantage of the consecutive holidays to go on vacation or visit family. So, if you want to learn more about the Golden Week and its significance in Japan, we recommend this Golden Week guide on Japan-Guide.com.

      If you have any questions or concerns about our closure during the Golden Week holidays, please visit our Contact us page for more information on how to get in touch with our team.

      HARDLOCK Industry Co. Ltd.

    • 2022 July 4th

      Summer Holidays Closure from August 10 ~ August 16

      HARDLOCK Industry Co., Ltd. will be closed for the Summer Holidays for the below dates:

      Wednesday 10th August 2022 – Tuesday 16 August 2022

      We resume regular business hours from Wednesday 17 August 2022.
      We appreciate your understanding and apologize for any inconvenience caused.

      Best Wishes
      HARDLOCK Industry Co., Ltd.
    • 2022 June 29th

      Shipping suspended from June 29 ~ June 30 for inventory count

      For our annual inventory count, we will be suspending all shipments from the June 29 to the June 30, 2022. We will resume normal shipping from the July 1, 2022. Thank you for your patience.

    • Read more

  • Media Coverage

    • 2023 July 24th

      Founder Katsuhiko features in Newsweek Magazine

      HARDLOCK Industry Co., Ltd and it’s visionary founder, Katsuhiko Wakabayashi, were recently featured in Newsweek Magazine!

      HARDLOCK Industry and Founder Featured in Newsweek Magazine!

      At HARDLOCK, we firmly believe that overseas partnerships are the key to overcoming challenges and enhancing our global presence. Mr. Wakabayashi emphasizes the importance of collaborating with local partners to jointly expand the market and create a secure and sustainable society, with a special focus on supporting infrastructure development.

      Our chairman’s vision is to eradicate any issues caused by bolt loosening, and we’re achieving this by forging strong alliances with like-minded companies who share HARDLOCK’s goals. Our aim is to provide safe and reliable bolted joint mechanisms for international society. It’s not just about maximizing profits for our company; we think globally and seek ways to contribute and support society as a whole.

      In the next five years, we envision the establishment of a revolutionary high-tensile resin fastener mechanism that will transform the worldwide industry. Within this framework, our commitment to global contribution remains unwavering.

      Media Coverage
    • 2017 October 26th

      Interviewed with Fastener News at the 2017 International Fastener Expo in Las Vegas

      Our Swedish staff accepted interview at National Industrial Fastener and Mill Supply Expo.
      ⇒ click here

      Media Coverage
    • 2016 September 10th

      Our presidents, Wakabayashi Katsuhiko is introduced on NHK’s international broadcast “NHK WORLD” as the Edison of East Osaka.

      Date: September 13(Tue) 20:45~  / Japan time zone
      ※This TV program is the world simulcast.
      In the case of European standard during summer time now, it’s broadcast of 13:45.

      If you are not able to watch this program by TV, you can see it on time from below:

      Media Coverage
    • 2016 July 1st

      We take part in promotional events for Higashi-osaka.

      On Jul.2nd we take part in the event in Tokyo.

      This site features Higashiosaka city.
      Our nuts are on display in venue.

      Media Coverage
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  • Projects

  • Presentations

    • 2022 November 18th

      Egypt Seminar reaches over 150 engineers

      HARDLOCK Industry Co., Ltd., in partnership with the AOTS, organized a subsidized three-day online seminar called “Fundamentals of Threaded Metal Connections [OREG01]” aimed at Egyptian companies. The program was held on November 15th, 16th, and 17th, with each day’s session lasting for three hours.

      Pamphlet for 'Fundamentals of Threaded Metal Connections' online seminar by HARDLOCK and hosted by AOTS.

      The Japanese firm collaborated with an expert university professor to deliver lectures on various topics, including Safe Design of Bolted Joints, Strategies to Prevent Loosening, and Techniques to Prevent Bolt Failure. Bolted Joints serve as the foundation for many manufacturing processes, and it is rare even in Japan to conduct a bolted joint seminar aimed at a broad audience of engineers. As a result, this event was likely the first of its kind to be conducted by Japan for an international audience.

      Thanks to the strong partnership and dedication of the AOTS Alumni Society in Egypt, we received a much more significant response than anticipated, with about 170 applicants (as of the October 31 application deadline) compared to our target of 100 participants.

      The applicants came from various manufacturing industries, such as the railway industry, infrastructure and construction sector (including the Suez Canal construction), and automobile manufacturers. Moreover, educational and training institutions also expressed interest in participating in the seminar.

      Despite being simple and commonplace in our daily lives, bolted joints still lead to life-threatening accidents worldwide due to poor design and incorrect installation. The high number of applicants for this seminar indicates a growing awareness of these issues.

    • 2016 June 15th

      Gave the lecture that was hosted by Japan Inst. Of Invention and Innovation of Kansai Branch.

      On June.15th we took part in the lecture.
      We talked about the history of HARDLOCK NUT.

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  • Exhibits

    • 2023 June 29th

      Attendance at CORE 2023 Conference in Melbourne, Australia

      HARDLOCK nut participated in the CORE 2023 “Conference on Railway Excellence,” organized by the Railway Technical Society of Australasia (RTSA), held at the Melbourne Convention and Exhibition Centre (MCEC).


      During the event, various railway-related companies such as Metro Trains Melbourne, ARTC, Sydney Trains, Queensland Rail, Transport for NSW, Mott MacDonald, Siemens, Aurecon, and others gathered to explore the latest advancements in railway infrastructure and signaling.

      Although we did not host a booth at this conference, we were delighted to have the opportunity to meet Melvelle, our new client, who has been manufacturing and supplying rail track maintenance equipment to railways since 1982. It was a valuable encounter for us.

      Thank you everyone for your support and we look forward to further collaborations in the railway industry.


      CORE 2023 Melvelle Booth - Rail Track Maintenance Equipment Showcase

    • 2022 May 10th

      Come see our Exhibit at Mass-Trans Innovation ( 25 ~ 27 May 2022 at INTEX OSAKA)

      We will be holding an exhibit at Mass-Trans Innovation for 3 days (OSAKA, JAPAN).
      Schedule: 25 ~ 27th May, 2022
      Time: 10a.m. ~ 5p.m.
      Place: INTEX OSAKA 4/5 Building
      Booth: 4J-18

      View the list of exhibitors:

      Fill in an invitation card in advance to get free entry.

      Also, this time we are accepting applications for recruitment. If you are interested, please drop by.

    • 2018 September 22nd

      ”Inno Trans2018”

      Date: 18 Sep (Tue) – 21 Sep (Fri),2018
      Venue: Messe Berlin, Germany
      Our booth: Hall 8.2, Stand NO.311


      Thank you for coming our stand.!!

    • 2018 June 4th


      Date: June 20(Wed) – 22(Fri),2018
      10:00-18:00 (close at 17:00 on Jun.22nd)

      Venue: Tokyo Big Sight, Japan
      Organised by Reed Exhibitions Japan Ltd.

      Our booth: Hall-West 4-26

      We are looking forward to seeing you.

    • Read more

  • Awards and Certifications

  • Product Developments