True-Lock RP-.437-20-K420 KIT

True-Lock Rotor Blade Fastener systems for Bell Helicopter rotor blades are the industry's finest fasteners for mitigating against premature wear from vibration. These systems are used on Bell JetRanger, LongRanger and Army OH-58 Kiowa helicopters predominantly used by the military, as well as law enforcement aircraft. If you need a system that is guaranteed for life and pays for itself while reducing down-time and wear and tear on rotorcraft, the True-Lock fastener systems are right for you. Consult our sales professional to find out which system is best for your helicopter.

True-Lock is the only patented aviation fastener system in the world that has been awarded an STC (Supplemental Type Certificate) by the FAA for rotor blade" fastener technology. True-Lock LLC holds over 1,000 FAA certifications for aviation fastener design and guaranteed for the life of your rotorcraft.

The True-Lock Fastener System RP-.437-20-K420 (2 blade rotor design) is compatible with the following Bell Helicopter (Textron Canada Limited) aircraft models:


206A, 206A-1 (OH-58A), 206B, 206L, 206L-1, 206L-3, 206L-4, 407

Click to see installation instructions. For more information on rotor blade fasteners, click .

We offer other True-Lock systems; click for the complete list. We strongly encourage you to call 1-877-477-7823, email , or use Live Chat for a custom quote. If you know your aircraft's "N" number, please be sure to mention this.