Company Commitment

HARDLOCK receives the Grand Prize of the 10th Japan Innovators Award, sponsored by Nikkei BP.

the 10th Japan Innovators Awardthe 10th Japan Innovators Award

The HARDLOCK president receives the Industrial Management Award from the Association for the Study of Industrial Management (Japan) - Certificate (PDF)

the Industrial Management Award

HARDLOCK receives JISQ 9100 certification for its Aeronautics, Space and Defense Quality Management System. (OASIS OIN:6133757800)

JISQ9100 JISQ9001

October 13, 2011 - The HARDLOCK president and his wife were invited by Japanese Emperor Akihito to the autumnal Garden Party in recognition for HardLock's many product achievements in Japan and abroad.

The autumnal Garden Party The autumnal Garden Party

October 1, 2011 - State Minister of National Strategy Motohisa Furukawa pays a visit to HARDLOCK as an inspection of an SME. After the visit, he sent a letter of appreciation.
Letter of Appreciation (PDF)

Furukawa pays a visit to HARDLOCK as an inspectionLetter of Appreciation (PDF)

The HARDLOCK president is mentioned in an inspirational message sent to the next generation of inventors by the Japan Patent Office of the Ministry of Economy, Trade and Industry.
"Message from the Today's Inventors to the Inventors of Tomorrow" (in Japanese)

HARDLOCK begins work toward JISQ 9100 certification to the enter the aeronautics industry with a goal of acquisition in 2011.

Minister of Economy, Trade and Industry Masayuki Naoshima visited HARDLOCK Industry to observe our manufacturing plant. The details of the event were carried in the Asahi Shimbun and the Nikkan Kogyo Shimbun newspapers.

On November 3, we were awarded the Order of the Rising Sun, Gold and Silver Rays in the national autumn conferment of decorations. This decoration was awarded to us at the strong recommendation of the Kansai Bureau of Economy, Trade and Industry because of our outstanding social contributions. The decoration ceremony and audience with the emperor were held on November 6.
The event was carried in the Nihon Keizai Shimbun newspaper on November 3, 2009.

HARDLOCK receives high praise from the Japanese government for our high quality.

  • The third Monodzukuri Nippon Grand Award was granted to HARDLOCK for manufacturing by the prime minister of Japan [PDF 17.2MB]


The third Monodzukuri Nippon Grand Award The third Monodzukuri Nippon Grand Award



HARDLOCK is proud to be a sponsor of the Japanese Olympics bobsleigh team, providing special-made titanium HARDLOCK Nuts. We hope that this will help shave time off the team's speed.


A world-class inspection device was installed in October 2008 to inspect every product. HARDLOCK is working to bring its defects to zero.
A world-class inspection ・Measurement size: M6 to M12
・Precision: 1/1000 of a mm
・Inspection items: six items checked simultaneously - nut height, internal thread diameter, width across flat, and concave and convex forms
・Measurement speed: 100 to 300 products per minute


 Many of our bills and packaging labels have changed to indicate strength classification instead of the materials used.
・SS400 and similar products: class 4
・S45C and similar products: class 8
・SCM435 and similar products: class 10
・SUS304 and similar products: A2
・For other products, the materials continue to be listed on the label.

 In July 2008, we completed the installation of a Junker horizontal angle screw looseness tester thanks to the help and cooperation from Director Ohashi of the Japan Research Institute for Screw Threads and Fasteners and other people. This has greatly simplified our product quality confirmation process, providing the results in accurate numerical values and graphs. Click here for further details.

 HardLock's M6 SS400 nuts were completely changed to HL-R in July. No other products, sizes or materials were changed.

HARDLOCK  Nut(HL-R) Notes:
The dimensions of the HL-R M6 concave and convex nuts have been changed. Because the dimensions differ on the fitting portion of the current HLN M6 concave and convex nuts, care should be taken to keep them separate.

We will be providing more details on HL-R separately. HL-R is an improved bolt type, incorporating a HARDLOCK nut rim (a flange on the seating face of the concave nut) for better workability. For a comparison, click here (in Japanese).


 We have written an atomic energy specification sheet for the HARDLOCK Nut. Contact us directly if you need any further details. Click here for the specification sheet.

 HARDLOCK aims to become more eco-friendly. On July 21st, we began shifting from the use of the harmful substance hexavalent chromium to trivalent chromium when electrolytic zinc plating for surface finishing.
Contact HardLock if you would like a product safety data sheet. They are available in English and Japanese.

 HARDLOCK has redesigned its case packaging and small boxes. Look for the new designs starting in September.

HLN HLB SLN HLS