True-Lock aviation fastener systems reduce premature wear on your wheel-end assembly parts (brakes, bearings, axles, including tires and wheels). The True-Lock system eliminates the conventional axle nut system’s inherent inferior torque setting characteristics imposed by the castle nut and cotter pin (end-play). For more details on axle end-play and rotational wear, click here. To view the True-Lock White Paper Synopsis, click here.
True-Lock is the only patented aviation wheel fastener system in the world that has been awarded an STC (Supplemental Type Certificate) by the FAA for axle nut technology. True-Lock LLC holds over 1,000 FAA certifications for aviation fastener design. All True-Lock fastener systems are guaranteed for the life of your aircraft and pay for themselves over time by reducing downtime and fewer replacement parts. So, If you want a wheel fastener system for your aircraft that sets the industry standard for vibration mitigation and cost reduction, then True-Lock is what you need.
The True-Lock Fastener System APV-1.25-12-K4 (for use with standard 1.25 inch axle) is compatible with the following Piper aircraft models:
J-2, J3C-40, J3C-50, J3C-50S, JC3-65 (Army L-4, L-4A, L-4B(Navy NE-1)), L-4H, L-4J (Navy NE-2)), J3C-65S, J3F-50, J3F-50S, J3F-60, J3F-60S, J3F-65 (Army L-4D), J3F-65S, J3L, J3L-S, J3L-65 (Army L-4C), J4, J4A, J4E (Army L-4E), J5A (Army L-4F) J5A-80, J5B (Army L-4G), J5C, AE-1, HE-1, PA-11, PA-12, PA-14, PA-15, PA-16, PA-17, PA-18, PA-18S, PA-18 "105" (Special), PA-18S "105" (Special), PA-18A, PA-18 "125" (Army L-21A), PA-18S "125", PA-18AS "125", PA-18 "135" (Army L-21B), PA-18A "135", PA-18S "135", PA-18AS "135", PA-18 "150", PA-18A "150", PA-18S "150", PA-18AS "150", PA-19 (Army L-18C), PA-19S, PA-20, PA-20S, PA-20"115", PA-20S"115", PA-20"135", PA-20S"135"
We offer other True-Lock fastener systems; click here for the complete list. We strongly encourage you to call 1-877-477-7823, email firstname.lastname@example.org, or use Live Chat for a custom quote. If you know your aircraft's "N" number, please be sure to mention this.