In December 1915, Edward A. Green invented the “nut and retainer.” A few years later, he patented the “nut lock,” paving the way for what is now known as the Security Locknut.
This unique locking nut was said to be originally used on military applications during the decades of World War I and World War II.
How It All Began
Security Locknut’s popularity grew steadily through the 20th and on into the 21st century, expanding into new industries like railroad, mining, vibratory equipment, and material handling.
It's versatility as an all-steel, fully reusable locknut widened its range. Its capabilities under extreme vibration and environmental conditions ensured its success.
A Comprehensive Solution
DECADES OF RELIABILITY
Security Locknut owners and operators Ray (left) and Dave (right).
Around 2010, the company changed hands and its current management team brought the product and the company into the modern era.
The same elite performance is now heightened by accentuated quality practices, creative and dynamic bolted joint problem solving, a larger manufacturing facility, and state-of-the-art processes.
UNDER NEW MANAGEMENT
SECURITY LOCKNUT CONTINUES TO GROW
A large part of Security Locknut’s growth over the past decade has been in the hands of the team in Vernon Hills, Illinois. Security Locknut prides itself on timely and friendly customer service as well as detail-oriented engineering assistance.
ISO 9001 certified and constantly improving, Security Locknut takes on customers’ challenges and works collaboratively with customers to find best-fit solutions.