Chinese Chinese
   
Korean Korean
   
Japaness Japanese
   
Choose Language:
main-logo
  • Products
    • HARDLOCK Nut
    • HARDLOCK Bearing Nut
    • HARDLOCK Set Screw
    • Identifying Counterfeit Products
    • Downloads
    • CAD Downloads
  • Technical Information
    • Why Do Bolts Come Loose?
    • Why do bolts fail from fatigue?
    • Bolt Locking Devices And Methods
      • Effective Loosening Prevention Strategies
    • What Makes HARDLOCK Stay Secure?
      • HARDLOCK Nut Wedging Mechanism
    • Locknut Testing Results
      • Types of Vibration Tests
      • Junker Test
      • NAS Test
      • Dynamic Axial Loading
      • Reusability
      • Double nutting comparison
    • Locknut Testing Equipment
    • Articles, Technical Papers
  • Applications
  • About Us
    • Company Profile
    • Corporate Vision
    • Quality Initiatives
    • Locations & Distributors
    • History
    • News
  • Contact us

Awards and Certifications

  • About Us
  • News
  • Awards and Certifications
  • 2003 January 1st

    The HLS-HARDLOCK Setscrew is trademarked as trademark number 4708616.

    Awards and Certifications
  • 2001 May 1st

    The HARDLOCK Nut is certified for use in Railtrack signal devices in the UK, certification number PA05/867.

    Awards and Certifications
  • 2001 March 1st

    ISO 9002 certification received from TUV for the Space Lock Nut.

    Awards and Certifications
  • 2000 July 1st

    The HARDLOCK trademark is officially registered as trademark number 4402041.

    Awards and Certifications
  • 2000 July 1st

    HLB has already been registered as trademark number 1930045.

    Awards and Certifications
8 / 9« First«...56789»
  • Products

    • HLN Hardlock Nut
    • HLB Hardlock Bearing Nut
    • HLS Hardlock Set Screw
    • Warning about Imitation Products
  • Technical Information

    • Why Do Fasteners Become Loose?
    • Why the Hardlock Nut Does Not Loosen
    • Testing Apparatus
    • Test Data
    • Articles, Technical Papers
  • Applications

  • About Us

    • Company Outline
    • Corporate Vision
    • Quality Initiatives
    • Locations
    • History
    • News
    • Contact us
    • Privacy Policy
    • Product Brochure Downloads
    • 2D & 3D CAD File Downloads

© 2025 HARDLOCK Industry Co., Ltd. All rights reserved.