dura-flex™
Prevailing Torque Six-Lock Flex Locknut
The DURA-FLEX™ is an all-metal fastener designed to provide a secure and reliable locking mechanism in various applications. This locknut’s unique design features a slotted collar at the top, creating six flex-locking elements that engage upon installation, ensuring a solid and vibration-resistant connection.
DURA-FLEX™ locknuts are engineered to maintain joint integrity under conditions involving continuous heavy vibration, shock, extreme temperatures, and numerous loading cycles. The six flex-locking elements deform elastically when tightened, creating a prevailing torque that resists loosening without the need for additional locking devices. This self-locking feature is crucial in applications where maintaining consistent clamping force is essential for safety and performance.
Application
DURA-FLEX™ locknuts are suitable for a wide range of applications, including:
- Automotive Industry: Securing components subject to constant vibration and dynamic loads.
- Machinery and Equipment: Maintaining the integrity of assemblies in industrial machines operating under harsh conditions.
- Aerospace Sector: Providing reliable fastening solutions in environments with extreme temperatures and mechanical stresses.
Specifications
Sizes
Available in sizes up to 3 inches in diameter, with special light or heavy torque-installed versions to accommodate various application requirements.
Materials
Manufactured from steel grades 2, 5, and 8, 2H/DH, Monel, brass, bronze, stainless steel, and a selection of exotic metals to suit different environmental conditions and strength needs.
Threads
Offered in UNC, UNF, or 8UN Series, Class 2B, 3B, left-hand thread, and Metric to accommodate diverse threading standards.
Finishes
Options include plain, zinc, and cadmium, as well as other platings and coatings to meet specific corrosion resistance needs.
Installation
The installation process for the C-LOC™ locknut is straightforward:
Threading
Manually spin the locknut onto the bolt until it contacts the bearing surface.
Seating
Continue to tighten the locknut using an appropriate wrench until it is firmly seated against the base.
Locking
As the nut is tightened, the six flex-locking elements deform elastically, creating a prevailing torque that secures the nut in place.
This method ensures a secure and maintenance-free fastening without the need for supplementary locking devices.
