Two-piece locknut - Hard Lock Industry Co.

May 17, 2010
The locknut installs with a wrench and is reusable.

Hard Lock Nuts use a wedge technique to maintain initial axial force and prevent loosening and breakage. The fasteners pass the American Vibration and Impact Test NAS 3350/NAS 3354 (National Aerospace Standard), Junker horizontal screw looseness tests, tensile strength, and torque/axial force tests even when loosened by 45°.
The two-piece nut installs with a wrench and is reusable. Shapes include standard, semi-thin, thin, and round, with custom shapes available.

Hard Lock Industry Co., Ltd., 1603 Colonial Pkwy, Suite 101, Inverness, IL 60067, (224) 595-0529,

About the Author

Jessica Shapiro

Jessica serves as Associate Editor - 3 years service, M.S. Mechanical Engineering, Drexel University.

Work experience: Materials engineer, The Boeing Company; Primary editor for mechanical and fastening & joining.

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